/ Dictionary / Index S sided: Meaning and Definition of Find definitions for: sid•ed Pronunciation: (sī'did), [key] — adj. having a specified number or kind of sides (often used in combination): five-sided; plastic-sided. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: sided (Thesaurus) side curl side dish Related Content Daily Word Quiz: lunar Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language