/ Dictionary / Index T thunderstick: Meaning and Definition of Find definitions for: thun•der•stick Pronunciation: (thun'dur-stik"), [key] — n. bull-roarer. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. thundersquall thunderstorm Related Content Daily Word Quiz: frugal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language