suss out vs look into

suss out and look into both are verbs.

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

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

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

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

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