stack

noun

• 1a pile of objects, typically one that is neatly arranged:a stack of boxes
• (a stack of/stacks of) informal a large quantity of something:there’s stacks of work for me now
• a rectangular or cylindrical pile of hay or straw or of grain in sheaf.
• a vertical arrangement of stereo or guitar amplification equipment.
• a number of aircraft flying in circles at different altitudes around the same point while waiting for permission to land at an airport.
• a pyramidal group of rifles.
• (the stacks) units of shelving in part of a library, used to store books compactly.
• Computing a set of storage locations that store data in such a way that the most recently stored item is the first to be retrieved.

• 2a chimney, especially one on a factory, or a vertical exhaust pipe on a vehicle.
• (also sea stack) a column of rock standing in the sea, remaining after erosion of cliffs.

verb

• 1arrange (a number of things) in a pile, typically a neat one:the books had been stacked up in three piles she stood up, beginning to stack the plates
• fill or cover (a place or surface) with piles of things, typically neat ones:he spent most of the time stacking shelves
• cause (an aircraft) to fly in circles while waiting for permission to land at an airport:I hope we aren’t stacked for hours over Kennedy

• 2shuffle or arrange (a deck of cards) dishonestly so as to gain an unfair advantage.
• (be stacked against/in favor of) used to refer to a situation that is such that an unfavorable or a favorable outcome is overwhelmingly likely:the odds were stacked against Fiji in the World Cup they found the courts stacked in favor of timber interests

• 3 [no object] (in snowboarding) fall over.