forest vs botany

forest and botany both are nouns.

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

Other hypernyms of forest include vegetation, flora.

forest (noun)	botany (noun)
the trees and other plants in a large densely wooded area	all the plant life in a particular region or period
land that is covered with trees and shrubs	the branch of biology that studies plants

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