I. | ̷ ̷ ̷ ̷| ̷ ̷ adjective
: being one more than 22 in number
twenty-three years
— see number table
II. pronoun, plural in construction
: 23 countable persons or things not specified but under consideration and being enumerated
twenty-three are here
twenty-three were found
III. noun
1. : three and 20
2.
a. : 23 units or objects
a total of twenty-three
b. : a group or set of 23
3. : the numerable quantity symbolized by the arabic numerals 23
4. : the 23d in a set or series ; especially : an article of clothing of the 23d size
wears a twenty-three
5. : a railway telegraph signal for a message of greatest urgency
6. : the end : that's all — compare twenty-three skiddoo