|< 90th||91st||92nd >|
| Cardinal : ninety-one
Ordinal : ninety-first
- (ordinal) The ordinal form of the number ninety-one, describing a person or thing in position number 91 of a sequence.
- The answer appears on the ninety-first page of the book.
- She finished ninety-first in the race.
English ordinal numbers may function as either an adjective or as a noun, and almost never appear in the plural.
- 91st, 91st
ninety-first (plural ninety-firsts)