fif•ty-fivePronunciation: (fif'tē-fīv'), [key]
a cardinal number, 50 plus 5.
a symbol for this number, as 55 or LV.
a set of this many persons or things.
amounting to 55 in number.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.