quell vs squelch

quell is not a noun while squelch is a noun.

Word	Noun	Adjective	Verb	Adverb
quell	No	No	Yes	No
squelch	Yes	No	Yes	No

As verbs, quell and squelch are synonyms defined as:

Other synonyms of quell include quench.

quell (noun)	squelch (noun)
	an electric circuit that cuts off a receiver when the signal becomes weaker than the noise
	a crushing remark

quell (verb)	squelch (verb)
suppress or crush completely	suppress or crush completely
overcome or allay	to compress with violence, out of natural shape or condition
	walk through mud or mire
	make a sucking sound