six•ty-threePronunciation: (siks'tē-thrē'), [key]
a cardinal number, 60 plus 3.
a symbol for this number, as 63 or LXIII.
a set of this many persons or things.
amounting to 63 in number.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.