docker vs lumper

docker and lumper both are nouns.

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

As nouns, docker and lumper are synonyms defined as:

Other synonyms of docker include dock-walloper, dock worker, dockhand, dockworker, loader, longshoreman, stevedore.

docker (noun)	lumper (noun)
a laborer who loads and unloads vessels in a port	a taxonomist who classifies organisms into large groups on the basis of major characteristics
	a laborer who loads and unloads vessels in a port