/ Dictionary / Index S sun sign: Meaning and Definition of Find definitions for: sun' sign" Pronunciation: [key] — Astrol. Astrol. the sign of the zodiac through which the sun moves for approximately 30 days each year as the signs rotate through the heavens along the elliptic. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. sunsick sun spider 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