Tectona grandis vs teak

Tectona grandis and teak both are nouns.

Word	Noun	Adjective	Verb	Adverb
Tectona grandis	Yes	No	No	No
teak	Yes	No	No	No

As nouns, Tectona grandis and teak are synonyms defined as:

Tectona grandis and teak: tall East Indian timber tree now planted in western Africa and tropical America for its hard durable wood

Tectona grandis (noun)	teak (noun)
tall East Indian timber tree now planted in western Africa and tropical America for its hard durable wood	tall East Indian timber tree now planted in western Africa and tropical America for its hard durable wood
	hard strong durable yellowish-brown wood of teak trees; resistant to insects and to warping; used for furniture and in shipbuilding