/ Dictionary / Index S semantic: Meaning and Definition of Find definitions for: se•man•tic Pronunciation: (si-man'tik), [key] — adj. of, pertaining to, or arising from the different meanings of words or other symbols: semantic change; semantic confusion. of or pertaining to semantics. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: semantic (Thesaurus) semanteme semantic differential Related Content Daily Word Quiz: lyceum Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language