Yes, dig is playable
...and is worth 6 points.
Found in the following dictionaries
Enable (Words with friends)
SOWPODS (Collins Scrabble Words)
OTCWL2014 (NASPA Word List 2014)
TWL06 (NASPA List 2006)
"Dig" Definition
noun
A poke or thrust: a sharp dig in the ribs.
A sarcastic, taunting remark; a gibe.
An archaeological excavation.
Sports An act or an instance of digging a ball.
phrasal-verb
Dig in To begin to eat heartily.
Dig in To begin to work intensively.
Dig in To dig trenches for protection.
Dig in To hold on stubbornly, as to a position; entrench oneself.
idiom
Dig it out Slang To run as fast as one can, especially as a base runner in baseball.
verb-intransitive
Slang To have understanding: Do you dig?.
To loosen, turn over, or remove earth or other material.
verb-transitive
Slang To like, enjoy, or appreciate: "They really dig our music and, daddy, I dig swinging for them” ( Louis Armstrong).
Slang To take notice of: Dig that wild outfit.
Slang To understand fully: Do you dig what I mean?.
Sports To strike or redirect (a ball) just before it hits the ground, as in tennis or volleyball.
To break up, turn over, or remove (earth or sand, for example), as with a shovel, spade, or snout, or with claws, paws or hands.
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