[1] : The Collaborative International Dictionary of English v.0.48

rub \rub\, v. t. imp.  p. p. rubbed; p. pr.  vb. n.
   rubbing. probably of celtic origin; cf. w. rhwbiaw, gael.
   rub.
   1. to subject a body to the action of something moving over
      its surface with pressure and friction, especially to the
      action of something moving back and forth; as, to rub the
      flesh with the hand; to rub wood with sandpaper.
      1913 webster

            it shall be expedient, after that body is cleaned,
            to rub the body with a coarse linen cloth. --sir t.
                                                  elyot.
      1913 webster

   2. to move over the surface of a body with pressure and
      friction; to graze; to chafe; as, the boat rubs the
      ground.
      1913 webster

   3. to cause a body to move with pressure and friction along
      a surface; as, to rub the hand over the body.
      1913 webster

            two bones rubbed hard against one another.
                                                  --arbuthnot.
      1913 webster

   4. to spread a substance thinly over; to smear.
      1913 webster

            the smoothed plank, . . .
            new rubbed with balm.                 --milton.
      1913 webster

   5. to scour; to burnish; to polish; to brighten; to cleanse;
      -- often with up or over; as, to rub up silver.
      1913 webster

            the whole business of our redemption is to rub over
            the defaced copy of the creation.     --south.
      1913 webster

   6. to hinder; to cross; to thwart. r.
      1913 webster

            't is the duke's pleasure,
            whose disposition, all the world well knows,
            will not be rubbed nor stopped.       --shak.
      1913 webster

   to rub down.
      a to clean by rubbing; to comb or curry; as, to down a
          horse.
      b to reduce or remove by rubbing; as, to rub down the
          rough points.

   to rub off, to clean anything by rubbing; to separate by
      friction; as, to rub off rust.

   to rub out, to remove or separate by friction; to erase; to
      obliterate; as, to rub out a mark or letter; to rub out a
      stain.

   to rub up.
      a to burnish; to polish; to clean.
      b to excite; to awaken; to rouse to action; as, to rub
          up the memory.
          1913 webster
see also:
rubbed rubbing to rub down to rub off to rub out to rub up 

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