lump

[1]	lump together , combine , join , consolidate , collect , bunch , group , unite , mass , aggregate , blend , mix , throw/put together
[2]	chunk
[3]	collocate , chunk

[1]	ball , mass , piece , clod , glob , gob , gobbet , clump , chunk , clod , chunk , clot , wad , clump , hunk , nugget , cube , wedge , cake
[2]	bump , swelling , puffiness , growth , swelling , protuberance , protrusion , prominence , bulge , excrescence , tumescence , nodule , knob , wen , cyst , boil , carbuncle , blister , wart , corn
[3]	lout , clod , stumblebum , goon , oaf , lubber , lummox , gawk
[4]	hunk