knock vs bash

knock and bash both are nouns.

Word	Noun	Adjective	Verb	Adverb
knock	Yes	No	Yes	No
bash	Yes	No	Yes	No

As nouns, knock and bash are synonyms defined as:

Other synonyms of knock include bang, belt, smash.

knock (noun)	bash (noun)
the act of hitting vigorously	a vigorous blow
negative criticism	an uproarious party
a vigorous blow
the sound of knocking (as on a door or in an engine or bearing)
a bad experience

knock (verb)	bash (verb)
find fault with; express criticism of; point out real or perceived flaws	hit hard
knock against with force or violence
rap with the knuckles
deliver a sharp blow or push
make light, repeated taps on a surface
sound like a car engine that is firing too early