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Definition of the adjective 21st

What does 21st mean as an attribute of a noun?


  1. coming next after the twentieth in position
    • examples: Science is the way to prepare for the 21st century. | Learning lessons from Europe, Japan has to switch its economic-oriented policy to a consumer-conscious one, in order to cope with the coming unprecedented aging society towards the 21st century. | The 21st century is going to be based on economic power. | The 21st century belongs to Asia. | I have kept available the afternoon of the 20th and the 21st, and would like to know if Mr Grant will be available for a meeting on either of those two days. | 2001 is the year when the 21st century begins. | I'd like two singles for three nights from the 21st for about sixty dollars a night. | Many big projects will be completed in the 21st century. | His birthday is August 21st. | Be sure to take the No.2 bus, and get off at 21st Street.
    • synonym of 21st: twenty-first
    • similar: ordinal

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