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Header of base


Base appears in many palindromes (phrases that read the same backward as forward):

  • Guns 'n' robes, a base born snug.
  • Egad! A base tone denotes a bad age
  • Egad, a base life defiles a bad age.
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Usage statistics for the verb base:

spoken English29.21%written English70.79% conversational speech9.59%task-oriented speech90.41% imaginative writing5.88%informational writing94.12%
View more statistics!

The word base is considered to be an easy one, according to the Dale-Chall word list, which includes 3000 words that all fourth-grade American students should know and understand.

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Definition of the noun base

What does base mean as a name of something?

noun - plural: bases

  1. installation from which a military force initiates operations
  2. lowest support of a structure
  3. a place that the runner must touch before scoring
    • lexical domain: Artifacts - nouns denoting man-made objects
    • synonym of base: bag
    • more generic term: baseball equipment = equipment used in playing baseball
    • more specific terms:
      • first base = the base that must be touched first by a base runner in baseball
      • home plate / home base / plate / home = base consisting of a rubber slab where the batter stands
      • second base = the base that must be touched second by a base runner in baseball
      • third base / third = the base that must be touched third by a base runner in baseball
    • part of: baseball diamond / diamond / infield = the area of a baseball field that is enclosed by 3 bases and home plate
  4. the bottom or lowest part
    • example: the base of the mountain
    • lexical domain: Natural Objects - nouns denoting natural objects (not man-made)
    • more generic words: part / piece = a portion of a natural object
  5. (anatomy) the part of an organ nearest its point of attachment
  6. a lower limit
    • lexical domain: Communicative Processes - nouns denoting communicative processes and contents
    • synonym of base: floor
    • more generic word: control = the economic policy of controlling or limiting or curbing prices or wages etc.
    • more specific terms:
      • price floor = floor below which prices are not allowed to fall
      • wage floor = floor below which wages are not allowed to fall
  7. the fundamental assumptions from which something is begun or developed or calculated or explained
  8. a support or foundation
    • example: the base of the lamp
    • lexical domain: Artifacts - nouns denoting man-made objects
    • synonyms of base: pedestal / stand
    • more generic word: support = any device that bears the weight of another thing
    • more specific terms:
      • brass monkey = a metal stand that formerly held cannon balls on sailing ships
      • staddle = a base or platform on which hay or corn is stacked
      • trivet = a stand with short feet used under a hot dish on a table
      • trivet = a three-legged metal stand for supporting a cooking vessel in a hearth
  9. a phosphoric ester of a nucleoside; the basic structural unit of nucleic acids (DNA or RNA)
  10. any of various water-soluble compounds capable of turning litmus blue and reacting with an acid to form a salt and water
    • example: bases include oxides and hydroxides of metals and ammonia
    • lexical domain: Substances - nouns denoting substances
    • synonym of base: alkali
    • more generic terms: chemical compound / compound = a substance formed by chemical union of two or more elements or ingredients in definite proportion by weight
    • more specific words:
      • pyridine = a toxic colorless flammable liquid organic base with a disagreeable odor
      • purine = a colorless crystalline organic base containing nitrogen
      • purine = any of several bases that are derivatives of purine
      • glyoxaline / imidazole / iminazole = an organic base C3H4N2
      • cyanuramide / melamine = a white crystalline organic base
      • pyrimidine = any of several basic compounds derived from pyrimidine
  11. the bottom side of a geometric figure from which the altitude can be constructed
    • example: the base of the triangle
    • lexical domain: Shapes - nouns denoting two and three dimensional shapes
    • more generic word: flank = a subfigure consisting of a side of something
  12. the most important or necessary part of something
  13. (numeration system) the positive integer that is equivalent to one in the next higher counting place
  14. the place where you are stationed and from which missions start and end
    • lexical domain: Locations - nouns denoting spatial position
    • synonym of base: home
    • more generic word: location = a point or extent in space
  15. a terrorist network intensely opposed to the United States that dispenses money and logistical support and training to a wide variety of radical Islamic terrorist groups; has cells in more than 50 countries
  16. (linguistics) the form of a word after all affixes are removed
  17. the stock of basic facilities and capital equipment needed for the functioning of a country or area
  18. the principal ingredient of a mixture
    • examples: glycerinated gelatin is used as a base for many ointments | he told the painter that he wanted a yellow base with just a hint of green | everything she cooked seemed to have rice as the base
    • lexical domain: Artifacts - nouns denoting man-made objects
    • more generic word: ingredient = a component of a mixture or compound
  19. a flat bottom on which something is intended to sit
    • example: a tub should sit on its own base
    • lexical domain: Artifacts - nouns denoting man-made objects
    • more generic words: bottom / underside / undersurface = the lower side of anything
    • part of: box = a (usually rectangular) container; lamp = a piece of furniture holding one or more electric light bulbs; vessel = an object used as a container
  20. (electronics) the part of a transistor that separates the emitter from the collector

Alternative definition of the noun base


  1. Something from which other things extend; a foundation.
  2. A supporting, lower or bottom component of a structure or object.
  3. The starting point of a logical deduction or thought; (Basis).
  4. A permanent structure for housing military personnel and material.
  5. The place where decisions for an organization are made; headquarters.
  6. [context: cooking, painting] A basic but essential component or ingredient.
  7. [chemistry] Any of a class of generally water-soluble compounds, having bitter taste, that turn red litmus blue, and react with acids to form salts.
  8. Important areas in games and sports
  9. [architecture] The lowermost part of a column, between the shaft and the pedestal or pavement.
  10. [baseball] One of the three places that a runner can stand without being subject to being tagged out.
  11. [biology, biochemistry] A nucleotide's nucleobase in the context of a DNA or RNA biopolymer.
  12. [botany] The end of a leaf, petal or similar organ where it is attached to its support.
  13. [electronics] The name of the controlling terminal of a transistor.
  14. [geometry] The lowest side of a in a triangle or other polygon, or the lowest face of a cone, pyramid or other polyhedron laid flat.
  15. [mathematics] A number raised to the power of an exponent.
  16. [topology] The set of sets from which a topology is generated.
  17. [topology] A topological space, looked at in relation to one of its covering spaces, fibrations, or bundles.
  18. [cheerleading] A cheerleader who stays on the ground.
  19. [linguistics] A morpheme (or morphemes) that serves as a basic foundation on which affixes can be attached.

Specialised definition of the noun base

Glossary of sports

a substance that reacts with an acid to form a salt (2006. Dictionary of Sport and Exercise Science. A&C Black Publishers Ltd)

clearly visible mark on a playing field or sport installation. In baseball the batter must run from one base to the next after hitting the ball in order to score points. (Herbert Haag & Gerald Haag. 2003. Dictionary. Sport, Physical Education, Sport Science. Kiel, Institut für Sport und Sportwissenschaften)

Glossary of sports / baseball

one of the four comers of the diamond-shaped infield that a batter must touch in order to score a run (2006. Dictionary of Sport and Exercise Science. A&C Black Publishers Ltd)

one of the fixed points around the corners of the infield, which a player must cross to score a run (2005. Chambers Sports Factfinder. Chambers Harrap Publishers Ltd)

Glossary of sports / skiing

the bottom of a ski; its running surface, typically coated with polyethylene or carbon fiber

the bottom of a slope or mountain

the average depth of snow at a ski area

Definition of the adjective base

What does base mean as an attribute of a noun?

Base is one of the top 1000 most common adjectives in the English language.

adjective - degrees: baser | basest

  1. serving as or forming a base
    • example: the painter applied a base coat followed by two finishing coats
    • synonym of base: basal
    • similar: basic
  2. of low birth or station (`base' is archaic in this sense)
  3. (used of metals) consisting of or alloyed with inferior metal
    • examples: base coins of aluminum | a base metal
    • similar: inferior
  4. not adhering to ethical or moral principles
    • examples: base and unpatriotic motives | a base, degrading way of life
    • synonym of base: immoral
    • similar: wrong
  5. having or showing an ignoble lack of honor or morality
    • example: that liberal obedience without which your army would be a base rabble
    • synonyms of base: mean / meanspirited
    • similar: ignoble
  6. illegitimate
  7. debased; not genuine

Alternative definition of the adjective base


  1. [obsolete] Low in height; short.
  2. [obsolete] Of low value or degree.
  3. [archaic] Of low social standing or rank; vulgar, common.
  4. [archaic] Morally reprehensible, immoral; cowardly.
  5. [context: now rare] Inferior; unworthy, of poor quality.
  6. Designating those metals which are not classed as [term, precious] or [term, noble].

Definition of the verb base

What does base mean as a doing word?

Base is one of the top 1000 most common verbs. It is used mostly in informational writing, being one of the top 100 most common verbs in informational written English.View more statistics!

verb - inflections: based | basing | bases

  1. use as a basis for; found on
    • example: base a claim on some observation
    • syntax:
      Syntactic formulaExample for the syntactic formula
      [Agent - being or organization] [Verb] [Theme 1] on [Theme 2]We based our plans on his information
      [Agent - being or organization] [Verb] [Theme 1] on [Theme 2, accusative with -ing]They based their plans on him getting in on time
      [Agent - being or organization] [Verb] [Theme 1] on [Theme 2, possessive with -ing]They based their plan on his seizing the base
      [Agent - being or organization] [Verb] [Theme 1] on [Theme 2, wh-complement clause]They based their decision on whether he happened to come or not

      Verbs of Basing (with the same syntax): build, construe, establish, format, found, ground.

    • lexical domain: Cognition - verbs of thinking, judging, analyzing, doubting
    • synonyms of base: establish / found / ground
    • more specific word: build = found or ground
  2. situate as a center of operations
    • example: we will base this project in the new lab
    • lexical domain: Stative - verbs of being, having, spatial relations
    • more generic words: locate / situate = determine or indicate the place, site, or limits of, as if by an instrument or by a survey
  3. use (purified cocaine) by burning it and inhaling the fumes


  1. Base is a telephony services and broadband internet brand operated by KPN Group Belgium/KPN in Belgium and Germany.
  2. Base is a record label.


Who is Base?

Base is an artist.


  1. Base a.k.a. Basê is a fictional character from the 2012 film Voice of My Father.
  2. Base is a fictional character, a mutant in the Marvel Comics Universe. His first appearance was in Genetix #1.
    • occupation: Martial artist
  3. Base is a fictional character from the 1989 film Cyborg.


"Base" a.k.a. "The Base" is a 1999 action/thriller film written by Jeff Albert and Hesh Rephun, produced by Dana Dubosky and Mark L. Lester, directed by Mark L. Lester and starring Mark Dacascos, Tim Abell and Paula Trickey.


  1. "BASE" is a musical EP of Kim Jonghyun.
    • released on
  2. "Base" is a musical album of Antoine Berthiaume & Elliott Sharp.
    • released in (7 years ago)


Base a.k.a. Base, Maharashtra: Base is a small village about 50 km from Thane city in India. It has post at Pachchapur and it is in Bhiwandi taluka. The holy temple of Vajreshwari and hot water springs at Akloli is only about 20 km from the village. According to the Indian census of 2001, the population of Base is composed of 566 in 121 households.


  1. Base: In chemistry, a base is a substance that, in aqueous solution, is slippery to the touch, tastes bitter, changes the colour of indicators, reacts with acids to form salts, and promotes certain chemical reactions. Examples of bases are the hydroxides of the alkali and alkaline earth metals. Such substances produce hydroxide ions in aqueous solutions, and are thus classified as Arrhenius bases.
    • also known as เบส (เคมี), Alcal, 鹽基
  2. base a.k.a. Radix: In mathematical numeral systems, the radix or base is the number of unique digits, including zero, used to represent numbers in a positional numeral system. For example, for the decimal system the radix is ten, because it uses the ten digits from 0 through 9.
  3. Base: In mathematics, a base B for a topological space X with topology T is a collection of open sets in T such that every open set in T can be written as a union of elements of B. We say that the base generates the topology T. Bases are useful because many properties of topologies can be reduced to statements about a base generating that topology, and because many topologies are most easily defined in terms of a base which generates them.
  4. Base: In geometry, a base is a side of a polygon or face of a polyhedron, particularly one perpendicular to the direction height is measured or on what is considered to the bottom of the object. This usage can be applied to a triangle, parallelogram, trapezoid, cylinder, cone, pyramid, parallelepiped or frustum. By extension, the length or area of a figure's base is also called its base. As such, bases are commonly used in formulas for area and volume. For example, a formula for the area of a triangle is × base × height. Another example is an octagonal prism; its base is an octagon, and its volume is the area of the base times the height.
  5. BASE is a multi-disciplinary search engine to scholarly internet resources, created by Bielefeld University Library in Bielefeld, Germany. It is based on search technology provided by Fast Search & Transfer, a Norwegian company. It harvests OAI metadata from scientific digital repositories that implement the Open Archives Initiative Protocol for Metadata Harvesting, and are indexed using FAST's software. In addition to OAI metadata, the library indexes selected web sites and local data collections, all of which can be searched via a single search interface.
  6. Base: In exponentiation, the base is the number b in an expression of the form bⁿ.
  7. Base is an international design, communications, audiovisual, copywriting and publishing firm established in 1993. Base creates brand solutions using strategy, creativity, and innovation not limited by industry, discipline, or media. The company has studios located in New York, Brussels, Santiago and Geneva.
  8. Base: In politics, the term base refers to a group of voters who almost always support a single party's candidates for elected office. Base voters are very unlikely to vote for the candidate of an opposing party, regardless of the specific views each candidate holds. In the United States, this is typically because high-level candidates must hold the same stances on key issues as a party's base in order to gain the party's nomination and thus be guaranteed ballot access. In the case of legislative elections, base voters often prefer to support their party's candidate against an otherwise appealing opponent in order to strengthen their party's chances of gaining a simple majority, typically the gateway to overarching power, in a legislature.
  9. Base: Let be a finite permutation group acting on a set .
  10. Base: The notable base thing for the compound.
  11. Base: The URL for this project's Base, if there is one.
  12. Base a.k.a. breast cancer and salivary gland expression gene is a gene.

Phrases with Base

Phrases starting with the word Base:

  1. Base Gas
  2. base hit
  3. Base Ball
  4. Base Jump
  5. base pair
  6. base rate
  7. Base Rent
  8. Base Unit
  9. base metal
  10. Base Sheet

Phrases ending with the word Base:

  1. On Base
  2. air base
  3. Fan Base
  4. Off Base
  5. off-base
  6. tax base
  7. army base
  8. free-base
  9. home base
  10. navy base

View more phrases with the word Base in thesaurus!

Printed dictionaries and other books with definitions for Base

Click on a title to look inside that book (if available):

Google previewEncyclopaedia Britannica, Or a Dictionary of Arts, Sciences, and Miscellaneous Literature (1810)

and NP perpendicular to DC, meeting ML in and P; the solid ABNOIKPQ will manifestly be a re&tangular parallelopiped, which will be equal to the parallelopiped AL, for they have the same base ...

Google previewDictionary of Military Terms (2009)

by U.S. Department of Defense

base — (*) 1. A locality from which operations are projected or supported. 2. An area or locality containing installations which provide logistic or other support. See also establishment. 3.

Google previewDictionary of Computer Science, Engineering and Technology (2000)

by Philip A. Laplante

base address (1) an address to which an index or displacement is added to ...

Google previewThe Encyclopaedia of Sports Medicine: An IOC Medical Commission Publication, Endurance in Sport (2008)

by R. J. Shephard, P.-O. Astrand

Base excess The total buffer base of whole blood is the sum of buffer anions (the bicarbonate in plasma and red blood cells, haemoglobin, plasma protein, and the phosphate content of plasma and red blood cells). Lactate competes with ...

Online dictionaries and encyclopedias with entries for Base

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Usage statistics about base

The following statistics are based on the British National Corpus, so they are representative for the British English from the later part of the 20th century, both spoken and written.

Usage statistics for the verb base:

spoken English29.21%written English70.79% conversational speech9.59%task-oriented speech90.41% imaginative writing5.88%informational writing94.12%

Distribution of usage frequency for the most common synonyms of the noun base:


Distribution of usage frequency for the most common synonyms of the adjective base:


Distribution of usage frequency for the most common synonyms of the verb base:


Photos about Base

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View more pictures about air base and Third Base.

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Small photo of Vandenberg Air Force Base, CA/USA-January 26, 2013: A ground-based interceptor is launched from a missile silo during a Ground-Based Midcourse Defense (GMD) Test for intercepting incoming warheads.Small photo of Trekkers going to Everest Base Camp in snowstorm - Nepal, HimalayasSmall photo of Tent in the Everest base camp. Mountain peak Everest. Highest mountain in the world. National Park, Nepal.Small photo of Yellow tent at Everest base Camp in Nepal 2016Small photo of River on the Everest Base Camp TrekSmall photo of Happy hiker walking in the mountains. Himalayas, Everest Base Camp trek, NepalSmall photo of EVEREST BASE CAMP, NEPAL, 14th NOVEMBER 2014 - view from Mount Everest base camp with rows of buddhist prayer flags - sagarmatha national park, way to Everest base camp - Nepal More...

Videos about Base

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View more videos about tax base, The Base, Acid Base, Base Unit, First Base, Touch Base, Schiff base, second base, Base Project, Base Over Apex, Conjugate Base, Base rate fallacy, and Lackland Air Force Base.

See also the pronunciation examples of Base!

Quotes about Base

It seemed that rebellion must have an unassailable base, something guarded not merely from attack, but from the fear of it: such a base as we had in the Red Sea Parts, the desert, or in the minds of the men we converted to our creed. (T.E. Lawrence)
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Scrabble value of B3A1S1E1

The value of this 4-letter word is 6 points. It is included in the first and second editions of the Official Scrabble Players Dictionary.

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