surround vs circumvent

surround is a noun but circumvent is not a noun.

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

As verbs, surround and circumvent are synonyms defined as:

Other synonyms of surround include beleaguer, besiege, hem in.

surround (noun)	circumvent (noun)
the area in which something exists or lives

surround (verb)	circumvent (verb)
surround so as to force to give up	avoid or try to avoid fulfilling, answering, or performing (duties, questions, or issues)
surround with a wall in order to fortify	beat through cleverness and wit
extend on all sides of simultaneously; encircle	surround so as to force to give up
envelop completely