another word for a metal slab is an ingot...
A synonym for clump of dirt could be "lump of earth" or "pile of soil."
Mound, Hump
Another word for a bunch of grass is a tussock.
lump, mass, gold, rock
it's called clods
food, grass
lump
grass
Another word for Earth's air is atmosphere.
There is no A or A sound in the word "lump." The word lamp has a short A.
A lump in the throat