CHUNK (चंक) - Roughly cut, large pieces of food such as bread.
SLAB (स्लैब) - A large, thick, flat slice of food, like cheese.
SLIVER (स्लिवर) - A very thin slice of food.
WEDGE (वैज) - A piece in the shape of a triangle.
KNOB (नॉब) - A small, rounded lump or ball butter or other such foods.