/ Dictionary / Index C common tern: Meaning and Definition of Find definitions for: com'mon tern'. Pronunciation: [key] See under. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. common teal common time Related Content Daily Word Quiz: perspicacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language