sev•en•ty-threePronunciation: (sev'un-tē-thrē'), [key]
a cardinal number, 70 plus 3.
a symbol for this number, as 73 or LXXIII.
a set of this many persons or things.
amounting to 73 in number.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.