1. [n]  the act of touching someone suddenly with your finger or elbow; "she gave me a sharp dig in the ribs"
2. [n]  the act of digging; "there's an interesting excavation going on near Princeton"
3. [n]  an aggressive remark directed at a person like a missile and intended to have a telling effect; "his parting shot was `drop dead'"; "she threw shafts of sarcasm"; "she takes a dig at me every chance she gets"
4. [n]  the site of an archeological exploration; "they set up camp next to the dig"
5. [v]  get the meaning of something; "Do you comprehend the meaning of this letter?"
6. [v]  poke or thrust abruptly; "he jabbed his finger into her ribs"
7. [v]  turn up, loosen, or remove earth; "Dig we must"; "turn over the soil for aeration"
8. [v]  remove the inner part or the core of; "the mining company wants to excavate the hillsite"
9. [v]  create by digging, of cavities; "dig a hole"
10. [v]  work hard; "She was digging away at her math homework"; "Lexicographers drudge all day long"

Dig
Dig

more details ...

1. \Dig\, v. t. [imp. & p. p. {Dug}or {Digged}; p. pr. & vb. n.
   {Digging}. -- Digged is archaic.] [OE. diggen, perh. the same
   word as diken, dichen (see {Dike}, {Ditch}); cf. Dan. dige to
   dig, dige a ditch; or (?) akin to E. 1st dag. ???.]
   1. To turn up, or delve in, (earth) with a spade or a hoe; to
      open, loosen, or break up (the soil) with a spade, or
      other sharp instrument; to pierce, open, or loosen, as if
      with a spade.
            Be first to dig the ground.           --Dryden.
   2. To get by digging; as, to dig potatoes, or gold.
   3. To hollow out, as a well; to form, as a ditch, by removing
      earth; to excavate; as, to dig a ditch or a well.
   4. To thrust; to poke. [Colloq.]
            You should have seen children . . . dig and push
            their mothers under the sides, saying thus to them:
            Look, mother, how great a lubber doth yet wear
            pearls.                               --Robynson
                                                  (More's
                                                  Utopia).
   {To dig down}, to undermine and cause to fall by digging; as,
      to dig down a wall.
   {To dig from}, {out of}, {out}, or {up}, to get out or obtain
      by digging; as, to dig coal from or out of a mine; to dig
      out fossils; to dig up a tree. The preposition is often
      omitted; as, the men are digging coal, digging iron ore,
      digging potatoes.
   {To dig in}, to cover by digging; as, to dig in manure.
   

2. \Dig\, v. i.
   1. To work with a spade or other like implement; to do
      servile work; to delve.
            Dig for it more than for hid treasures. --Job iii.
                                                  21.
            I can not dig; to beg I am ashamed.   --Luke xvi. 3.
   2. (Mining) To take ore from its bed, in distinction from
      making excavations in search of ore.
   3. To work like a digger; to study ploddingly and
      laboriously. [Cant, U.S.]
   

3. \Dig\, n.
   1. A thrust; a punch; a poke; as, a dig in the side or the
      ribs. See {Dig}, v. t., 4. [Colloq.]
   2. A plodding and laborious student. [Cant, U.S.]
   

4. \Dig\, v. i.
   1. To work hard or drudge; specif. (U. S.): To study
      ploddingly and laboriously. [Colloq.]
            Peter dug at his books all the harder. --Paul L.
                                                  Ford.
   2. (Mach.) Of a tool: To cut deeply into the work because ill
      set, held at a wrong angle, or the like, as when a lathe
      tool is set too low and so sprung into the work.
   {To dig out}, to depart; to leave, esp. hastily; decamp.
      [Slang, U. S.]
   

5. \Dig\, n.
   1. A tool for digging. [Dial. Eng.]
   2. An act of digging.
   3. An amount to be dug.
   4. (Mining) = {Gouge}.