Real Dictionary

teak
uncountable noun: Teak is the wood of a tall tree with very hard, light-coloured wood which grows in South-East Asia.

teak in American English
a tall SE Asian tree (Tectona grandis) of the verbena family, with white flowers and hard, yellowish-brown wood used for shipbuilding, furniture, etc.
noun: a large East Indian tree, Tectona grandis, of the verbena family, yielding a hard, durable, resinous, yellowish-brown wood used for shipbuilding, making furniture, etc.

teak in British English
noun: a large verbenaceous tree, Tectona grandis, of the East Indies, having white flowers and yielding a valuable dense wood