scrape — to deprive of or free from an outer layer, adhering matter, etc., or to smooth by drawing or rubbing something, especially a sharp or rough instrument, over the surface: to scrape a table to remove paint and varnish.
shovel — an implement consisting of a broad blade or scoop attached to a long handle, used for taking up, removing, or throwing loose matter, as earth, snow, or coal.
burrow — A burrow is a tunnel or hole in the ground that is dug by an animal such as a rabbit.
cut — If you cut something, you use a knife or a similar tool to divide it into pieces, or to mark it or damage it. If you cut a shape or a hole in something, you make the shape or hole by using a knife or similar tool.
delve — If you delve into something, you try to discover new information about it.
empty — A container (esp. a bottle or glass) left empty of its contents.
gouge — a chisel having a partly cylindrical blade with the bevel on either the concave or the convex side.
grub — the thick-bodied, sluggish larva of several insects, as of a scarab beetle.
hollow — having a space or cavity inside; not solid; empty: a hollow sphere.
scoop — a ladle or ladlelike utensil, especially a small, deep-sided shovel with a short, horizontal handle, for taking up flour, sugar, etc.
spade — a black figure shaped like an inverted heart and with a short stem at the cusp opposite the point, used on playing cards.
trench — Richard Chenevix [shen-uh-vee] /ˈʃɛn ə vi/ (Show IPA), 1807–86, English clergyman and scholar, born in Ireland.
