act as vs acquit

act as and acquit both are verbs.

Word	Noun	Adjective	Verb	Adverb
act as	No	No	Yes	No
acquit	No	No	Yes	No

As verbs, acquit is a hypernym of act as; that is, acquit is a word with a broader meaning than act as:

act as: pretend to have certain qualities or state of mind
acquit: behave in a certain manner; show a certain behavior; conduct or comport oneself

Other hypernyms of act as include act, bear, behave, carry, comport, conduct, deport, do.

act as (verb)	acquit (verb)
pretend to have certain qualities or state of mind	behave in a certain manner; show a certain behavior; conduct or comport oneself
function as or act like	pronounce not guilty of criminal charges