a thick mass or lump of anything

a chunk of bread; a chunk of firewood.

Informal . a thick-set and strong person.

a strong and stoutly built horse or other animal.

a substantial amount of something

Rent is a real chunk out of my pay.

to cut, break, or form into chunks

Chunk that wedge of cheese and put the pieces on a plate.

to remove a chunk or chunks from (often fol. by out )

Storms have chunked out the road.

to form, give off, or disintegrate into chunks

My tires have started to chunk.

noun

block , clod , dollop , glob , gob , hunk , lump , nugget , part , piece , portion , wad , clump , hunch , mass , slab , slug , whang