suss out vs check into

suss out and check into both are verbs.

Word	Noun	Adjective	Verb	Adverb
suss out	No	No	Yes	No
check into	No	No	Yes	No

As verbs, suss out and check into are synonyms defined as:

suss out and check into: examine so as to determine accuracy, quality, or condition

Other synonyms of suss out include check, check out, check over, check up on, go over, look into.

suss out (verb)	check into (verb)
examine so as to determine accuracy, quality, or condition	examine so as to determine accuracy, quality, or condition