Timbre rhymes with:
timber, imber, kimber, limber, timber, amber, amber's, bamber, bedchamber, camber, cambre, chamber, clamber, cucumber, cumber, december, dismember, ember, encumber, gamber, humber, imber, kamber, kimber, limber, lumber, macomber, macumber, mccomber, mccumber, mcomber, member, misremember, nonmember, nov, november, number, outnumber, pember, remember, schamber, sember, september, slumber, somber, timber, unencumber
Timbre sounds like:
tamburo, tamburri, tamburro, tamper, temper, tempera, temporary, tempore, thumper, timber