environment vs surround

environment and surround both are nouns.

Word	Noun	Adjective	Verb	Adverb
environment	Yes	No	No	No
surround	Yes	No	Yes	No

As nouns, environment and surround are synonyms defined as:

Other synonyms of environment include environs, surroundings.

environment (noun)	surround (noun)
the area in which something exists or lives	the area in which something exists or lives
the totality of surrounding conditions

environment (verb)	surround (verb)
	surround so as to force to give up
	surround with a wall in order to fortify
	extend on all sides of simultaneously; encircle
	envelop completely