kink vs flex

kink and flex both are nouns.

Word	Noun	Adjective	Verb	Adverb
kink	Yes	No	Yes	No
flex	Yes	No	Yes	No

kink (noun)	flex (noun)
a difficulty or flaw in a plan or operation	the act of flexing
an eccentric idea
a person with unusual sexual tastes
a sharp bend in a line produced when a line having a loop is pulled tight
a painful muscle spasm especially in the neck or back (`rick' and `wrick' are British)

kink (verb)	flex (verb)
form a curl, curve, or kink	cause (an object) to assume a crooked or angular form
curl tightly	bend a joint
	form a curve
	contract
	exhibit the strength of