The Collaborative International Dictionary of English v.0.48:

Grind \Grind\, v. t. [imp. & p. p. Ground; p. pr. & vb. n.
   Grinding.] [AS. grindan; perh. akin to L. frendere to
   gnash, grind. Cf. Grist.]
   1. To reduce to powder by friction, as in a mill, or with the
      teeth; to crush into small fragments; to produce as by the
      action of millstones.
      [1913 Webster]

            Take the millstones, and grind meal.  --Is. xivii.
                                                  2.
      [1913 Webster]

   2. To wear down, polish, or sharpen, by friction; to make
      smooth, sharp, or pointed; to whet, as a knife or drill;
      to rub against one another, as teeth, etc.
      [1913 Webster]

   3. To oppress by severe exactions; to harass.
      [1913 Webster]

            To grind the subject or defraud the prince.
                                                  --Dryden.
      [1913 Webster]

   4. To study hard for examination; -- commonly used with away;
      as, to grind away at one's studies. [College Slang]
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Grind \Grind\, v. i.
   1. To perform the operation of grinding something; to turn
      the millstones.
      [1913 Webster]

            Send thee
            Into the common prison, there to grind. --Milton.
      [1913 Webster]

   2. To become ground or pulverized by friction; as, this corn
      grinds well.
      [1913 Webster]

   3. To become polished or sharpened by friction; as, glass
      grinds smooth; steel grinds to a sharp edge.
      [1913 Webster]

   4. To move with much difficulty or friction; to grate.
      [1913 Webster]

   5. To perform hard and distasteful service; to drudge; to
      study hard, as for an examination. --Farrar.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Grind \Grind\, n.
   1. The act of reducing to powder, or of sharpening, by
      friction.
      [1913 Webster]

   2. Any severe continuous work or occupation; esp., hard and
      uninteresting study. [Colloq.] --T. Hughes.
      [1913 Webster]

   3. A student that studies hard; a dig; a wonk. [College
      Slang]
      [1913 Webster +PJC]

WordNet (r) 3.0 (2006):

grind
    n 1: an insignificant student who is ridiculed as being affected
         or boringly studious [syn: swot, grind, nerd, wonk,
         dweeb]
    2: the grade of particle fineness to which a substance is
       ground; "a coarse grind of coffee"
    3: hard monotonous routine work [syn: drudgery, plodding,
       grind, donkeywork]
    4: the act of grinding to a powder or dust [syn: grind,
       mill, pulverization, pulverisation]
    v 1: press or grind with a crushing noise [syn: crunch,
         cranch, craunch, grind]
    2: make a grating or grinding sound by rubbing together; "grate
       one's teeth in anger" [syn: grate, grind]
    3: work hard; "She was digging away at her math homework";
       "Lexicographers drudge all day long" [syn: labor, labour,
       toil, fag, travail, grind, drudge, dig, moil]
    4: dance by rotating the pelvis in an erotically suggestive way,
       often while in contact with one's partner such that the
       dancers' legs are interlaced
    5: reduce to small pieces or particles by pounding or abrading;
       "grind the spices in a mortar"; "mash the garlic" [syn:
       grind, mash, crunch, bray, comminute]
    6: created by grinding; "grind designs into the glass bowl"
    7: shape or form by grinding; "grind lenses for glasses and
       cameras"

The Free On-line Dictionary of Computing (19 January 2023):

GRIND

   GRaphical INterpretive Display.

   A graphics input language for the PDP-9.

   ["GRIND: A Language and Translator for Computer Graphics",
   A.P. Conn, Dartmouth, June 1969].

   [Jargon File]

   (1995-01-31)


The Free On-line Dictionary of Computing (19 January 2023):

grind

   1. (MIT and Berkeley) To prettify hardcopy of code, especially
   LISP code, by reindenting lines, printing keywords and
   comments in distinct fonts (if available), etc.  This usage
   was associated with the MacLISP community and is now rare;
   prettyprint was and is the generic term for such operations.

   2. (Unix) To generate the formatted version of a document from
   the nroff, troff, TeX, or Scribe source.

   3. To run seemingly interminably, especially (but not
   necessarily) if performing some tedious and inherently useless
   task.  Similar to crunch or grovel.  Grinding has a
   connotation of using a lot of CPU time, but it is possible to
   grind a disk, network, etc.

   See also hog.

   4. To make the whole system slow.  "Troff really grinds a
   PDP-11."

   5. "grind grind" excl. Roughly, "Isn't the machine slow
   today!"

   [Jargon File]

   (1994-12-16)


The Jargon File (version 4.4.7, 29 Dec 2003):

grind
 vt.

    1. [MIT and Berkeley; now rare] To prettify hardcopy of code, especially
    LISP code, by reindenting lines, printing keywords and comments in distinct
    fonts (if available), etc. This usage was associated with the MacLISP
    community and is now rare; prettyprint was and is the generic term for
    such operations.

    2. [Unix] To generate the formatted version of a document from the troff,
    TeX, or Scribe source.

    3. [common] To run seemingly interminably, esp. (but not necessarily) if
    performing some tedious and inherently useless task. Similar to crunch or
    grovel. Grinding has a connotation of using a lot of CPU time, but it is
    possible to grind a disk, network, etc. See also hog.

    4. To make the whole system slow. “Troff really grinds a PDP-11.”

    5. grind grind excl. Roughly, “Isn't the machine slow today!”