pretend vs surmise

pretend and surmise both are nouns.

Word	Noun	Adjective	Verb	Adverb
pretend	Yes	Yes	Yes	No
surmise	Yes	No	Yes	No

As verbs, surmise is a hyponym of pretend; that is, surmise is a word with a more specific, narrower meaning than pretend:

Other hyponyms of pretend include anticipate, call, forebode, foretell, predict, prognosticate, promise, suspect.

pretend (noun)	surmise (noun)
the enactment of a pretense	a message expressing an opinion based on incomplete evidence

pretend (adjective)	surmise (adjective)
imagined as in a play

pretend (verb)	surmise (verb)
make believe with the intent to deceive	infer from incomplete evidence
represent fictitiously, as in a play, or pretend to be or act like	imagine to be the case or true or probable
put forward, of a guess, in spite of possible refutation
state insincerely
behave unnaturally or affectedly
put forward a claim and assert right or possession of