tree vs two-dimensional figure

tree and two-dimensional figure both are nouns.

Word	Noun	Adjective	Verb	Adverb
tree	Yes	No	Yes	No
two-dimensional figure	Yes	No	No	No

As nouns, two-dimensional figure is a hypernym of tree; that is, two-dimensional figure is a word with a broader meaning than tree:

Other hypernyms of tree include plane figure.

tree (noun)	two-dimensional figure (noun)
a tall perennial woody plant having a main trunk and branches forming a distinct elevated crown; includes both gymnosperms and angiosperms	a two-dimensional shape
a figure that branches from a single root

tree (verb)	two-dimensional figure (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