forests is a form of:

Forest



noun
1.
(a tract of wooded, uncultivated land, the trees alone) ព្រៃ (ព្រឹក្សា)
verb
1.
(TRANSITIVE) (to cover with trees) ដាំឈើ, ដាំព្រៃ
ENGLISH MEANING
noun
1.
An extensive wood; a large tract of land covered with trees; in the United States, a wood of native growth, or a tract of woodland which has never been cultivated.
2.
A large extent or precinct of country, generally waste and woody, belonging to the sovereign, set apart for the keeping of game for his use, not inclosed, but distinguished by certain limits, and protected by certain laws, courts, and officers of its own.
adjective
1.
Of or pertaining to a forest; sylvan.
verb
1.
(TRANSITIVE) To cover with trees or wood.