/ Dictionary / Index S sidehead: Meaning and Definition of Find definitions for: side•head Pronunciation: (sīd'hed"), [key] — n. Print. a heading or subhead run in the margin of a book or magazine. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. side-glance sidehill Related Content Daily Word Quiz: spectral Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language