Pronunciation: (siks'tē-fôr', -fōr'), [key]
1. a cardinal number, 60 plus 4.
2. a symbol for this number, as 64 or LXIV.
3. a set of this many persons or things.
amounting to 64 in number.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.