basketball backboard vs backboard

basketball backboard and backboard both are nouns.

Word	Noun	Adjective	Verb	Adverb
basketball backboard	Yes	No	No	No
backboard	Yes	No	No	No

As nouns, basketball backboard and backboard are synonyms defined as:

basketball backboard and backboard: a raised vertical board with basket attached; used to play basketball

basketball backboard (noun)	backboard (noun)
a raised vertical board with basket attached; used to play basketball	a board used to support the back of someone or something
	a raised vertical board with basket attached; used to play basketball