forest vs tree

forest and tree both are nouns.

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

forest (noun)	tree (noun)
the trees and other plants in a large densely wooded area	a tall perennial woody plant having a main trunk and branches forming a distinct elevated crown; includes both gymnosperms and angiosperms
land that is covered with trees and shrubs	a figure that branches from a single root

forest (verb)	tree (verb)
establish a forest on previously unforested land	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