Ram /(răm)/

Ram

n.
  1. The male of the sheep and allied animals. In some parts of England a ram is called a tup.
  2. Aries, the sign of the zodiac which the sun enters about the 21st of March. (Astron.)
  3. An engine of war used for butting or battering.
  4. A hydraulic ram. See under Hydraulic.
  5. The weight which strikes the blow, in a pile driver, steam hammer, stamp mill, or the like.
  6. The plunger of a hydraulic press.

Phrases & Compounds
Ram's horn
A low semicircular work situated in and commanding a ditch

Ram

v. t.

imp. & p. p. Rammed; p. pr. & vb. n. Ramming

  1. To butt or strike against; to drive a ram against or through; to thrust or drive with violence; to force in; to drive together; to cram; as, to ram an enemy's vessel; to ram piles, cartridges, etc.
    [They] rammed me in with foul shirts, and smocks, socks, foul stockings, greasy napkins.
  2. To fill or compact by pounding or driving.
    A ditch . . . was filled with some sound materials, and rammed to make the foundation solid.