I. | ̷ ̷ ̷ ̷| ̷ ̷ adjective
: being one more than 24 in number
twenty-five years
— see number table
II. pronoun, plural in construction
: 25 countable persons or things not specified but under consideration and being enumerated
twenty-five are here
twenty-five were found
III. noun
1. : five and 20 : five fives : the square of five
2.
a. : 25 units or objects
a total of twenty-five
b. : a group or set of 25
arranged by twenty-fives
3. : the numerable quantity symbolized by the arabic numerals 25
4. : the 25th in a set or series ; especially : an article of clothing of the 25th size
wears a twenty-five
5. : a 25-caliber pistol — usually written .25