bash vs bump

bash and bump both are nouns.

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

As nouns, bump is a hypernym of bash; that is, bump is a word with a broader meaning than bash:

Other hypernyms of bash include blow.

bash (noun)	bump (noun)
a vigorous blow	an impact (as from a collision)
an uproarious party	something that bulges out or is protuberant or projects from its surroundings
	a lump on the body caused by a blow

bash (verb)	bump (verb)
hit hard	knock against with force or violence
	remove or force from a position of dwelling previously occupied
	to play music at loud volume
	to enjoy some music greatly
	dance erotically or dance with the pelvis thrust forward
	come upon, as if by accident; meet with
	assign to a lower position; reduce in rank