/ Dictionary / Index S siker: Meaning and Definition of Find definitions for: sik•er Pronunciation: (sik'ur), [key] — adj., adv. Scot. and North Eng. sicker. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. sike Sikeston Related Content Daily Word Quiz: morose Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language