- a cardinal number, eight plus one.
- a symbol for this number, as 9 or IX.
- a set of this many persons or things.
- a baseball team.
- a playing card with nine pips.
- the Muses.
- amounting to nine in number.
- looking one's best; dressed smartly, splendidly, etc.: All the girls were dressed to the nines for the party.
- the cardinal number that is the sum of one and eight
- a numeral, 9, IX, etc, representing this number
- something representing, represented by, or consisting of nine units, such as a playing card with nine symbols on it
- nine hours after noon or midnight
- elaborately dressed
- (in Britain) the telephone number of the emergency services
- normal office hours
- amounting to nine
- (as pronoun)
