Twelfth1. (a.) Next in order after the eleventh; coming after eleven others; -- the ordinal of twelve.
2. (a.) Consisting, or being one of, twelve equal parts into which anything is divided.
3. (n.) The quotient of a unit divided by twelve; one of twelve equal parts of one whole.
4. (n.) The next in order after the eleventh.
5. (n.) An interval comprising an octave and a fifth.
Thesaurus Entries
English horn, Pandean pipe, aulos, basset horn, basset oboe, block flute, bombard, bourdon, cello, claribel, clarinet, clarion, concert flute, contrabassoon, contrafagotto, cornet, cornopean, cromorna, cromorne, cymbel, diapason, double bassoon, double reed, dulciana, fife, fipple flute, flageolet, flute, flute stop, foundation stop, fourniture, gamba, gedeckt, gemshorn, harmonic flute, hautboy, heckelphone, hornpipe, hybrid stop, koppel flute, larigot, licorice stick, melodia, mixture, musette, mutation stop, nazard, oaten reed, oboe, oboe da caccia, ocarina, octave, organ stop, panpipe, penny-whistle, piccolo, pipe, plein jeu, pommer, posaune, principal, quint, quintaten, rank, ranket, recorder, reed, reed instrument, reed stop, register, rohr flute, sax, saxophone, sesquialtera, shawm, single reed, single-reed instrument, sonorophone, spitz flute, stop, stopped diapason, stopped flute, string diapason, string stop, sweet potato, syrinx, tabor pipe, tenoroon, tierce, tin-whistle, tremolo, trombone, trumpet, twelfth, unda maris, vibrato, viola, voix celeste, vox angelica, vox humana, whistle, woods, woodwind, woodwind choir, woodwind instrument