Real Dictionary

dig
verb: If people or animals dig, they make a hole in the ground or in a pile of earth, stones, or rubbish.
verb: If you dig into something such as a deep container, you put your hand in it to search for something.
verb: If you dig one thing into another or if one thing digs into another, the first thing is pushed hard into the second, or presses hard into it.

dig in American English 1
to break and turn up or remove (ground, etc.) with a spade or other tool, or with hands, claws, snout, etc.
intransitive verb: to break up, turn over, or remove earth, sand, etc., as with a shovel, spade, bulldozer, or claw; make an excavation
transitive verb: to break up, turn over, or loosen (earth, sand, etc.), as with a shovel, spade, or bulldozer

dig in American English 2
digest
transitive verb: to understand

dig in British English
noun
noun: the act of digging
verb: to cut into, break up, and turn over or remove (earth, soil, etc), esp with a spade

dig. in American English
abbreviation: digest