/ Dictionary / Index S second-guess: Meaning and Definition of Find definitions for: sec•ond-guess Pronunciation: (sek'und-ges'), [key] — v.t. to use hindsight in criticizing or correcting. to predict (something) or outguess (someone): We must try to second-guess what he'll do next. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: second-guess (Thesaurus) second growth second hand Related Content Daily Word Quiz: tactful Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language