bruise vs contuse

bruise is a noun but contuse is not a noun.

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

As verbs, bruise and contuse are synonyms defined as:

bruise (noun)	contuse (noun)
an injury that doesn't break the skin but results in some discoloration

bruise (verb)	contuse (verb)
damage (plant tissue) by abrasion or pressure	injure the underlying soft tissue or bone of
break up into small pieces for food preparation
injure the underlying soft tissue or bone of
hurt the feelings of