treetop vs tree

treetop and tree both are nouns.

Word	Noun	Adjective	Verb	Adverb
treetop	Yes	No	No	No
tree	Yes	No	Yes	No

treetop (noun)	tree (noun)
the upper branches and leaves of a tree or other plant	a tall perennial woody plant having a main trunk and branches forming a distinct elevated crown; includes both gymnosperms and angiosperms
	a figure that branches from a single root

treetop (verb)	tree (verb)
	stretch (a shoe) on a shoetree
	chase an animal up a tree
	plant with trees
	force a person or an animal into a position from which he cannot escape