From Longman Dictionary of Contemporary Englishstackstack1 /stæk/ ●○○ noun 1 
GROUP OF THINGS[countable] a neat pile of things → heapstack of a stack of papers stacks of dirty dishes2 → a stack of something/stacks of something3 TBB[countable] a chimney4 → the stacks → blow your top/stack at blow1(16)
GROUP OF THINGS[countable] a neat pile of things → heapstack of a stack of papers stacks of dirty dishes2 → a stack of something/stacks of something3 TBB[countable] a chimney4 → the stacks → blow your top/stack at blow1(16)Examples from the Corpus
stack• I said hello and sat down on a stack of C-ration cases.• a stack of sales brochures• A stack of copies was piled up at the entrance to the Arts Lab.• Impale each stack with a bamboo stick to hold the bales in place.• Manion turned off the engine, picked up his stack of envelopes, and locked the car.• He built up neat stacks in order of priority, slipped rubber bands around them, dropped them in his briefcase.• Next, Heath argues, CPU-specific issues like register stacks and context switching need to be standardised.• Next to the bottles was a tall stack of plastic cups.• After he had gone, she stared blankly at the stack of boxes he had left.• The only limit placed on the depth of nesting is the room available for the stack.• The whole stack fell over, and half the plates got broken.stack of• Stacks of unopened boxes filled the room.• a stack of booksstackstack2 ●○○ verb 1 (also stack up) [intransitive, transitive]GROUP/PUT INTO GROUPS to make things into a neat pile, or to form a neat pile The assistants price the items and stack them on the shelves. a stacking hi-fi system2 [transitive]FULL to put neat piles of things on something He went back to stacking the shelves.be stacked with something The floor was stacked with boxes.3 → the odds/cards are stacked against somebody4 → stack the cards → stack up→ See Verb tableExamples from the Corpus
stack• Underneath some shabby canvas tarps on the cargo deck were stacked a dozen bulky mattresses and twenty thick pine boards.• These chairs are designed to stack easily.• Boxes were stacked in the corner.• Long, thin sandalwood logs sprinkled with incense were stacked on it.• Bundles of papers and box files were stacked on termite-proof metal shelves but their labels had faded.• I'll start stacking the chairs.• I would stack this wood aside against the days I had visitors.• Walls are stacked to the ceiling with lampshades in all sizes and shapes.• My kids leave dirty plates stacked up in the sink until I get home.• On the far side, by the window, there were plates stacked up in the sink.• This chart, from an Intelrun benchmark called Spec95, gives a rough idea of how the two chip families stack up.• In one street, the pavement is stacked with cardboard boxes of Toshiba television sets.be stacked with something• But six members quit in early 1995, charging that the panel was stacked with advocates of legalization.• In one street, the pavement is stacked with cardboard boxes of Toshiba television sets.• The second, lit by a single row of fluorescent lights, was stacked with large wooden crates from end to end.• His home is stacked with literally hundreds and he's made almost all of them.• These were on the shelf and the bottom of the safe was stacked with pocket files.• His agency was stacked with political appointees who took their orders from elsewhere.• The only bookcase he has is stacked with video tapes whose titles I do not read.From Longman Business Dictionarystackstack1 /stæk/ noun [countable]COMPUTING a temporary store of information on a computerstackstack2 verb1[transitive] to put things into neat pilesThe supermarkets failed to stack the shelves during opening hours.2[intransitive, transitive] to put a group of people, or vehicles or other things in a particular order as they wait to do somethingThe two airliners were stacking as they waited to land. —stacking noun [uncountable]a machine that prepares huge bags of salt for stacking → stack up→ See Verb tableOrigin stack1 (1200-1300) Old Norse stakkr 