/ Dictionary / Index T Thasos: Meaning and Definition of Find definitions for: Tha•sos Pronunciation: (thä'sôs Eng. thā'sos, -sōs), [key] — n. a Greek island in the N Aegean. 13,316; ab. 170 sq. mi. (440 sq. km). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Tharsis that Related Content Daily Word Quiz: cygnet Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language