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thirty-one

thirty-one

7 1.0
The number after thirty and before thirty-two
  • numeral
  • /ˈθɜrti wʌn/
translation icon : treinta y uno
  • Ninety-one more students were located nearby: seven elsewhere in Illinois, fifty-three in Indiana, and thirty-one in Iowa.
  • thirty-one percent
  • thirty-one years
  • thirty-one pages

Examples

  • In the mentor program, there were thirty-one pairs meeting at the three middle schools.

    Academic text (2003)
  • The book was donated to thirty-one local elementary schools.

    Academic text (2015)
  • During this fifty-year period, the U.S. population increased from thirty-one million to ninety-one million.

    Academic text (1993)
  • The pastors of thirty-one churches cooperated by preaching on the seriousness of health conditions.

    Academic text (1994)
  • The event attracted thirty-one participants from various countries.

  • There are thirty-one days in the month of October in a non-leap year.

  • The book contains thirty-one chapters that outline the author's journey.

Synonyms

xxxi
vsthirty-one
1 4.1

A Roman numeral for thirty-one

is shown as standard digits instead of Roman numerals

Surface Forms

thirty-one cardinal word
31 cardinal digit

Morphology

thirty-one = thirty + one (transparent) = thirty + one

The meaning is a direct numerical composition of 'thirty' and 'one' (30 + 1 = 31), which is immediately clear to learners.

Etymology

Thirty-one is simply the number made from thirty + one, and thirty originally means 'three tens'. So thirty-one literally means 'one more than thirty', which is the number 31.