/ Dictionary / Index T treble clef: Meaning and Definition of Find definitions for: tre'ble clef" Pronunciation: [key] — Music. Music. a sign that locates the G above middle C, placed on the second line of the staff, counting up; G clef.Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. treble treble staff 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