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forest vs second growth second growth vs forest

forest and second growth both are nouns.

forest is a verb but second growth is not a verb.

As nouns, second growth is a hyponym of forest; that is, second growth is a word with a more specific, narrower meaning than forest and second growth is a type of forest with the definitions:
  • the trees and other plants in a large densely wooded area
forest (noun) second growth (noun)
the trees and other plants in a large densely wooded area a second growth of trees covering an area where the original stand was destroyed by fire or cutting
land that is covered with trees and shrubs
forest (verb) second growth (verb)
establish a forest on previously unforested land