TI
- the seventh tone of the diatonic musical scale [n TIS]
- (in the fixed system of solmization) the tone B
- widely cultivated tropical plant, Cordyline terminalis, of the agave family, having narrow, leathery, often variegated leaves and yellowish, white, or reddish flowers
- titanium
- any of several Asian and Pacific trees or shrubs (genus Cordyline) of the agave family with leaves in terminal tufts
- the syllable for the seventh tone of a diatonic scale