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WordNet (r) 3.0 (2006) (WordNet)

Ti
n 1: a light strong grey lustrous corrosion-resistant metallic
element used in strong lightweight alloys (as for airplane
parts); the main sources are rutile and ilmenite [synonym:
{titanium}, {Ti}, {atomic number 22}]
2: shrub with terminal tufts of elongated leaves used locally
for thatching and clothing; thick sweet roots are used as
food; tropical southeastern Asia, Australia and Hawaii [synonym:
{ti}, {Cordyline terminalis}]
3: the syllable naming the seventh (subtonic) note of any
musical scale in solmization [synonym: {ti}, {te}, {si}]