hurt vs bruise

hurt and bruise both are nouns.

Word	Noun	Adjective	Verb	Adverb
hurt	Yes	Yes	Yes	No
bruise	Yes	No	Yes	No

As nouns, bruise is a hyponym of hurt; that is, bruise is a word with a more specific, narrower meaning than hurt:

hurt: any physical damage to the body caused by violence or accident or fracture etc.; the condition of an injury
bruise: an injury that doesn't break the skin but results in some discoloration

As verbs, hurt and bruise are synonyms defined as:

Other synonyms of hurt include injure, offend, spite, wound.

hurt (noun)	bruise (noun)
the act of damaging something or someone	an injury that doesn't break the skin but results in some discoloration
a damage or loss
feelings of mental or physical pain
psychological suffering
any physical damage to the body caused by violence or accident or fracture etc.; the condition of an injury

hurt (adjective)	bruise (adjective)
damaged; used of inanimate objects or their value
suffering from physical injury especially that suffered in battle

hurt (verb)	bruise (verb)
give trouble or pain to	damage (plant tissue) by abrasion or pressure
be in pain	break up into small pieces for food preparation
cause damage or affect negatively	injure the underlying soft tissue or bone of
hurt the feelings of	hurt the feelings of
cause emotional anguish or make miserable
be the source of pain
feel physical pain