Pronunciation: (twelv), [key]
1. a cardinal number, 10 plus 2.
2. a symbol for this number, as 12 or XII.
3. a set of this many persons or things.
4. the Twelve,the 12 apostles chosen by Christ.
amounting to 12 in number.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.