9

Học thuật
Thân thiện
Definition
  1. Noun:

    • The cardinal number that is the sum of eight and one; the number represented by the symbol 9 or IX. It is one more than eight and one less than ten.
  2. Adjective:

    • Denoting a quantity consisting of one more than eight and one less than ten. Used to describe a set or group with this number of items.
Examples of Usage
  • Noun:

    • The answer to the equation is nine.
    • She counted from one to nine.
    • A cat is said to have nine lives.
  • Adjective:

    • There are nine planets in the solar system. (Note: This is a historical/cultural example; the current scientific count is eight.)
    • The meeting will start at nine o'clock.
    • He scored nine points in the game.
Advanced Usage
  • "Dressed up to the nines": An idiom meaning dressed very elegantly or smartly.
    • She was dressed up to the nines for the gala.
  • "A stitch in time saves nine": A proverb meaning that solving a problem early prevents it from becoming much bigger.
    • Fix that leak now; remember, a stitch in time saves nine.
  • "On cloud nine": An idiom meaning to be extremely happy.
    • After receiving the promotion, he was on cloud nine.
Variants and Related Words
  • Ninth (adjective & noun): Constituting number nine in a sequence; the position after the eighth.
    • This is the ninth day of the month. (adjective)
    • She finished in ninth place. (noun)
  • Ninefold (adjective & adverb): Nine times as great or as numerous; by nine times.
    • A ninefold increase. (adjective)
Synonyms
  • IX (Roman numeral)
  • Niner (informal, used in radio communications to avoid confusion with other words)
Related Phrases
  • The whole nine yards: An idiom meaning everything possible or available.
    • They went the whole nine yards for the wedding.
  • A nine days' wonder: Something that generates excitement for a short time but is quickly forgotten.
    • The scandal was just a nine days' wonder.
Adjective
  1. denoting a quantity consisting of one more than eight and one less than ten
Noun
  1. the cardinal number that is the sum of eight and one