/ Dictionary / Index S semiology: Meaning and Definition of Find definitions for: se•mi•ol•o•gy Pronunciation: (sē"mē-ol'u-jē, sem"ē-, sē"mī-), [key] — n. the study of signs and symbols; semiotics. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: semiology (Thesaurus) semiofficial semiopaque Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language