close in vs enclose

close in and enclose both are verbs.

Word	Noun	Adjective	Verb	Adverb
close in	No	No	Yes	No
enclose	No	No	Yes	No

As verbs, close in and enclose are synonyms defined as:

Other synonyms of close in include inclose, shut in.

close in (verb)	enclose (verb)
surround completely	place, fit, or thrust (something) into another thing
advance or converge on	surround completely
	enclose or enfold completely with or as if with a covering
	close in