/ Dictionary / Index S Sibiu: Meaning and Definition of Find definitions for: Si•biu Pronunciation: (sē-by'), [key] — n. a city in central Rumania. 156,854. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Sibir&hamza; sibling Related Content Daily Word Quiz: neologism Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language