A13K

Ninety

UK /["/ˈnaɪnti/"]/US /["/ˈnaɪnti/"]/

Definition

90

In simple words: The number 90.

Examples

  • The temperature must be in the nineties today.

Usage notes

Used when discussing age, quantity, or counting. Can be formal or informal. Not common in casual conversations unless discussing statistics or summaries.

Grammar pattern

standalone number

Memory hint

Ninety sounds like 'nine tea', imagine serving tea at a party with nine guests.

Collocations

  • ninety degrees
  • ninety percent
  • ninety miles

Synonyms

  • ninety
  • ninety-one
  • ninety-two
  • nine-tenths
  • nearly one hundred

Antonyms

  • zero
  • none
  • nothing

Common mistakes

  • Confusing 'ninety' with 'nineteen' (19).
  • Using 'ninety' instead of 'one hundred' when counting.
  • Incorrectly spelling 'ninety' as 'ninety' or using numbers instead of words.