squelch vs squelch circuit

squelch and squelch circuit both are nouns.

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

As nouns, squelch and squelch circuit are synonyms defined as:

squelch and squelch circuit: an electric circuit that cuts off a receiver when the signal becomes weaker than the noise

Other synonyms of squelch include squelcher.

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

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