Definition of grub

• v. i. - To dig in or under the ground, generally for an object that is difficult to reach or extricate; to be occupied in digging.
• v. i. - To drudge; to do menial work.
• v. t. - To dig; to dig up by the roots; to root out by digging; -- followed by up; as, to grub up trees, rushes, or sedge.
• v. t. - To supply with food.
• n. - The larva of an insect, especially of a beetle; -- called also grubworm. See Illust. of Goldsmith beetle, under Goldsmith.
• n. - A short, thick man; a dwarf.
• n. - Victuals; food.