flex vs kink

flex and kink both are nouns.

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

flex (noun)	kink (noun)
the act of flexing	a difficulty or flaw in a plan or operation
	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)

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