A1high_frequency_chunk

One

UK /["/wʌn/"]/US /["/wʌn/"]/

Definition

the number 1

In simple words: The number 1.

Examples

  • I have one apple in my bag.
  • She is the one who won the race.
  • There is only one solution to the problem.
  • One of my friends is coming over later.
  • One day, I hope to travel the world.

Usage notes

Use 'one' to refer to a single item or as a pronoun to emphasize individuality. Avoid in casual or informal contexts when simpler expressions like 'a' or 'the' suffice.

Grammar pattern

standalone number

Memory hint

Think of a single beat in music — 'one' is the first beat.

Collocations

  • one way
  • one time
  • one more

Synonyms

  • certain (5)
  • outdo

Antonyms

  • many
  • several

Common mistakes

  • Confused with 'won' in pronunciation.
  • Using 'one' instead of 'a' in contexts, e.g., 'one car' instead of 'a car'.
  • Omitting 'one' when it's required for clarity, e.g., 'one of the best' instead of just 'of the best'.