See grub in Webster's New World Roget's A-Z Thesaurus II
verb
To break, turn over, or remove (earth or sand, for example) with or as if with a tool:
delve, dig, excavate, scoop, shovel, spade. See enterTo do tedious, laborious, and sometimes menial work:
drudge, plod, slave, slog. (Informal) grind. See work
noun
One who works or toils tirelessly:
drudge, fag, plodder, slave. (Informal) grind, workhorse. See work- (Slang)
Something fit to be eaten:
aliment, bread, comestible, diet, edible, esculent, fare, food, foodstuff, meat, nourishment, nurture, nutriment, nutrition, pabulum, pap, provender, provision (used in plural), sustenance, victual. (Slang) chow, eats. See ingestion
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