American basswood vs lime tree

American basswood and lime tree both are nouns.

Word	Noun	Adjective	Verb	Adverb
American basswood	Yes	No	No	No
lime tree	Yes	No	No	No

As nouns, lime tree is a hypernym of American basswood; that is, lime tree is a word with a broader meaning than American basswood:

American basswood: large American shade tree with large dark green leaves and rounded crown
lime tree: any of various deciduous trees of the genus Tilia with heart-shaped leaves and drooping cymose clusters of yellowish often fragrant flowers; several yield valuable timber

Other hypernyms of American basswood include basswood, lime, linden, linden tree.

American basswood (noun)	lime tree (noun)
large American shade tree with large dark green leaves and rounded crown	any of various related trees bearing limes
	any of various deciduous trees of the genus Tilia with heart-shaped leaves and drooping cymose clusters of yellowish often fragrant flowers; several yield valuable timber