tree farm vs forest

tree farm and forest both are nouns.

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

As nouns, forest is a hypernym of tree farm; that is, forest is a word with a broader meaning than tree farm:

tree farm: a forest (or part of a forest) where trees are grown for commercial use
forest: land that is covered with trees and shrubs

Other hypernyms of tree farm include timber, timberland, woodland.

tree farm (noun)	forest (noun)
a forest (or part of a forest) where trees are grown for commercial use	the trees and other plants in a large densely wooded area
	land that is covered with trees and shrubs

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