tree vs crown

tree and crown both are nouns.

tree (noun)	crown (noun)
a tall perennial woody plant having a main trunk and branches forming a distinct elevated crown; includes both gymnosperms and angiosperms	the part of a tooth above the gum that is covered with enamel
a figure that branches from a single root	a wreath or garland worn on the head to signify victory
	an ornamental jeweled headdress signifying sovereignty
	the part of a hat (the vertex) that covers the crown of the head
	an English coin worth 5 shillings
	the upper branches and leaves of a tree or other plant
	the top or extreme point of something (usually a mountain or hill)
	the award given to the champion
	the top of the head
	(dentistry) dental appliance consisting of an artificial crown for a broken or decayed tooth
	the center of a cambered road

tree (verb)	crown (verb)
force a person or an animal into a position from which he cannot escape	invest with regal power; enthrone
plant with trees	be the culminating event
chase an animal up a tree	form the topmost part of
stretch (a shoe) on a shoetree	put an enamel cover on