twenty-nine

UK: ˈtwenti naɪn | US: ˈtwɛnti naɪn

Definition

  1. n. the cardinal number equal to twenty plus nine (29)

  2. adj. amounting to twenty-nine in number

Structure
twenty <two tens>nine <the number 9>
Etymology

The word "twenty-nine" is a compound of "twenty" (from Old English twēntig, meaning "two tens") and "nine" (from Old English nigon, meaning the number 9). It follows the standard English pattern for forming numbers between 21 and 99 by combining the tens place with the units place, linked by a hyphen. This structure reflects the Germanic roots of English number formation, where numerals are built additively.

Examples

  1. She celebrated her twenty-ninth birthday last week.

  2. The book has twenty-nine chapters in total.

  3. Twenty-nine students passed the final exam.

  4. The temperature dropped to twenty-nine degrees overnight.

  5. He scored twenty-nine points in the basketball game.