/ Dictionary / Index T tomfoolery: Meaning and Definition of Find definitions for: tom•fool•er•y Pronunciation: (tom"f'lu-rē), [key] — pl. -er•ies. foolish or silly behavior; tomfoolishness. a silly act, matter, or thing. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: tomfoolery (Thesaurus) tomfool Tomism 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