scrap vs scrapper

scrap and scrapper both are nouns.

Word	Noun	Adjective	Verb	Adverb
scrap	Yes	No	Yes	No
scrapper	Yes	No	No	No

scrap (noun)	scrapper (noun)
the act of fighting; any contest or struggle	someone who fights (or is fighting)
a small piece of something that is left over after the rest has been used
a small fragment of something broken off from the whole
worthless material that is to be disposed of

scrap (verb)	scrapper (verb)
make into scrap or refuse
have a disagreement over something
dispose of (something useless or old)