To dig in or under the ground; hence, to work hard in any way; especially, to make laborious research; search or study closely.
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To eat; take a meal: as, it is time to grub.
To dig; dig up by the roots: frequently followed by up or out: as, to grub up shrubs or weeds.
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To supply with food; provide with victuals.
noun.
In cricket, a ball bowled along the ground. Also called, in the slang of cricket, sneaker and daisy-cutter.
noun.
The larva of an insect; especially, the larva of a beetle: as, the white-grub (the larva of Lachnosterna fusca). Also grubworm.
noun.
A short thick man; a dwarf: in contempt.
noun.
Something to eat; victuals; a provision of food (as the product of grubbing or hard work).