This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

n. Extra labor hired by a trucking company to assist a driver and/or customer unloading or loading a truck.

n. A scientist in one of various fields who prefers to keep categories such as species or dialects together in larger groups.

n. The European eelpout; -- called also lumpen.

n. The European eelpout; -- called also lumpen.

n. One who lumps.

n. A laborer who is employed to load or unload vessels when in harbor.

n. In some places, a laborer employed to load and unload vessels in port; a dock-hand; a longshoreman; a stevedore.

n. A militiaman.

n. In zoology, one who lumps several described species, genera, etc., in one: opposed to splitter.

n. a laborer who loads and unloads vessels in a port

n. a taxonomist who classifies organisms into large groups on the basis of major characteristics

""lumper" -- that is, a contractor in a small way who took work in the"

splitter   

jack    laborer    labourer    manual laborer    systematist    taxonomist    taxonomer   

lumpen   

bumper    dumper    jumper    mumper    stumper    thumper