/ Dictionary / Index T thigh-high: Meaning and Definition of Find definitions for: thigh-high Pronunciation: (thī'hī"), [key] a garment for the lower body, as a stocking or boot, that reaches the thigh. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. thighbone thigh-slapper Related Content Daily Word Quiz: soporific Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language