21

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Definition

  1. Adjective:

    • Being one more than twenty; the number equivalent to the product of three and seven, represented by the symbols 21 or XXI.

  2. Noun:

    • The cardinal number that is the sum of twenty and one; the natural number following 20 and preceding 22.
Usage Examples

  • Adjective:

    • She celebrated her 21st birthday with a big party.
    • The recipe calls for 21 grams of sugar.

  • Noun:

    • The final score was twenty-one to fourteen.
    • "Blackjack" is a card game also known as twenty-one.
Advanced Usage

  • "To come of age": In many cultures, turning 21 is traditionally associated with reaching legal adulthood, granting full rights and responsibilities.

    • In the United States, you can legally purchase alcohol once you turn 21.

  • "21-gun salute": A ceremonial honor performed by firing cannons or artillery, typically reserved for heads of state or national holidays.

    • The visiting dignitary received a 21-gun salute.
Variants and Related Words

  • Twenty-first (adj): Constituting number twenty-one in a sequence; the ordinal form.

    • He finished in twenty-first place in the race.

  • Twenty-one (n): The name of the number; also a common name for the card game Blackjack.

    • Let's play a hand of twenty-one.
Synonyms
  • XXI: The Roman numeral representation.
  • Score and one: An archaic or poetic way to refer to the number (a "score" is twenty).
Related Phrases

  • "The 21st century": Refers to the current century, the years 2001–2100.

    • Technology has advanced rapidly in the 21st century.

  • "21 questions": A popular parlour game where one person answers 21 questions from others.

    • We played 21 questions to get to know each other better.
Related Idioms
  • "Catch-21": A less common variant of "Catch-22," implying a no-win situation or a paradoxical rule. (Note: This is a non-standard, creative adaptation based on the famous idiom).
    • It was a Catch-21; I needed experience to get the job, but I needed the job to get experience.
Adjective
  1. being one more than twenty
Noun
  1. the cardinal number that is the sum of twenty and one

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