squelch vs quell

squelch is a noun but quell is not a noun.

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

As verbs, squelch and quell are synonyms defined as:

Other synonyms of squelch include quench.

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

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