tuff: Meaning and Definition of
tuff
Pronunciation: (tuf), [key] - tough (def. 13).
tuff
Pronunciation: (tuf), [key] - a fragmental rock consisting of the smaller kinds of volcanic detritus, as ash or cinder, usually more or less stratified. Also called
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.