lumper vs lump

lumper and lump both are nouns.

Word	Noun	Adjective	Verb	Adverb
lumper	Yes	No	No	No
lump	Yes	No	Yes	No

lumper (noun)	lump (noun)
a taxonomist who classifies organisms into large groups on the basis of major characteristics	a compact mass
a laborer who loads and unloads vessels in a port	a large piece of something without definite shape
	an awkward stupid person
	an abnormal protuberance or localized enlargement

lumper (verb)	lump (verb)
	group or chunk together in a certain order or place side by side
	put together indiscriminately