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

stack \stack\, v. t. imp.  p. p. stacked sta^kt; p. pr.
    vb. n. stacking. cf. sw. stacka, dan. stakke. see
   stack, n.
   1. to lay in a conical or other pile; to make into a large
      pile; as, to stack hay, cornstalks, or grain; to stack or
      place wood.
      1913 webster

   2. specifically: to place in a vertical arrangement so that
      each item in a pile is resting on top of another item in
      the pile, except for the bottom item; as, to stack the
      papers neatly on the desk; to stack the bricks.
      pjc

   3. to select or arrange dishonestly so as to achieve an
      unfair advantage; as, to stack a deck of cards; to stack a
      jury with persons prejudiced against the defendant.
      pjc

   to stack arms mil., to set up a number of muskets or
      rifles together, with the bayonets crossing one another,
      and forming a sort of conical pile.
      1913 webster
see also:
stacked stacking stack to stack arms 

Arms >> A Words
Arms, definition of term: Arms
arms_pag1.html

Stack >> S Words
Stack, definition of term: Stack
stack_pag1.html

Stack Up >> S Words
Stack Up, definition of term: Stack Up
stack+up_pag1.html

Arms Race >> A Words
Arms Race, definition of term: Arms Race
arms+race_pag1.html

Arms Length >> A Words
Arms Length, definition of term: Arms Length
arms+length_pag1.html

Coat Of Arms >> C Words
Coat Of Arms, definition of term: Coat Of Arms
coat+of+arms_pag1.html

College Of Arms >> C Words
College Of Arms, definition of term: College Of Arms
college+of+arms_pag1.html

Smash The Stack >> S Words
Smash The Stack, definition of term: Smash The Stack
smash+the+stack_pag1.html