put-down vs squelcher

put-down and squelcher both are nouns.

Word	Noun	Adjective	Verb	Adverb
put-down	Yes	No	No	No
squelcher	Yes	No	No	No

As nouns, put-down and squelcher are synonyms defined as:

Other synonyms of put-down include squelch, takedown.

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