stack
1. stack \'stak\ n [ME stak, fr. ON stakkr; akin to OE staca stake] 1: a
large usu. conical pile (as of hay) left standing in the field for sto rage
2a: an orderly pile or heap 2b: a large quantity or number 3: an English
unit of measure esp. for firewood that is equal to 108 cubic feet 4a: a
number of flues embodied in one structure rising above a roof 4b: a
vertical pipe (as to carry off smoke) 4c: the exhaust pipe of an
internal-combustion engine 5: a pyramid of three rifles interlocked 6: a
structure of bookshelves for compact storage of books - usu. used in pl.
7: a pile of chips sold to or won by a poker player
2. stack vt 1: to arrange in a stack : PILE 2: to arrange secretly for
cheating {the cards were ~ed agai nst him} 3: to assign (an airplane) by
radio to a particular altitude and position within a group circling before
landing : to form a stack - stack.er n