re-afforest vs forest

re-afforest is not a noun while forest is a noun.

Word	Noun	Adjective	Verb	Adverb
re-afforest	No	No	Yes	No
forest	Yes	No	Yes	No

As verbs, forest is a hypernym of re-afforest; that is, forest is a word with a broader meaning than re-afforest:

Other hypernyms of re-afforest include afforest.

re-afforest (noun)	forest (noun)
	the trees and other plants in a large densely wooded area
	land that is covered with trees and shrubs

re-afforest (verb)	forest (verb)
reestablish a forest after clear-cutting or fire, etc.	establish a forest on previously unforested land