A stack is a tidy pile, like the stack of books on your nightstand or the stack of pancakes on your plate at breakfast. You can also use stack as a verb meaning "to arrange in piles."
If you stack the dollar bills you earned from your lemonade stand, you'll eventually have a stack of dollar bills. Unlike the similar word pile, stack implies a neat, orderly bundle, rather than a messy, haphazard one. When someone "stacks the deck," they cheat in order to achieve the outcome they want—sometimes literally, by arranging a deck of cards unfairly.
DISCLAIMER: These example sentences appear in various news sources and books to reflect the usage of the word ‘stack'.
Views expressed in the examples do not represent the opinion of Vocabulary.com or its editors.
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