play possum vs affect

play possum is not a noun while affect is a noun.

Word	Noun	Adjective	Verb	Adverb
play possum	No	No	Yes	No
affect	Yes	No	Yes	No

As verbs, affect is a hypernym of play possum; that is, affect is a word with a broader meaning than play possum:

Other hypernyms of play possum include dissemble, feign, pretend, sham.

play possum (noun)	affect (noun)
	the conscious subjective aspect of feeling or emotion

play possum (verb)	affect (verb)
to pretend to be dead	act physically on; have an effect upon
	have an effect upon
	make believe with the intent to deceive
	have an emotional or cognitive impact upon
	connect closely and often incriminatingly