​[countable] stack (of something) (informal, especially British English) a large number or amount of something; a lot of something.

​[transitive, intransitive] to arrange objects neatly in a pile; to be arranged in this way. stack (something) to stack boxes; Do these chairs stack?

1[countable] a pile of something, usually neatly arranged a stack of books see haystack · 2[countable] stack (of something) (informal) a large number or amount ...

There are 18 meanings listed in OED's entry for the noun stack, two of which are labelled obsolete. See 'Meaning & use' for definitions, usage, ...

to arrange objects neatly in a pile; to be arranged in this way to stack boxes logs stacked up against a wall Do these chairs stack? stacking chairs.

There are nine meanings listed in OED's entry for the verb stack. See 'Meaning & use' for definitions, usage, and quotation evidence. stack has developed ...

STACK definition: 1. a pile of things arranged one on top of another: 2. a large amount: 3. a set of shelves in a…. Learn more.

if a surface is stacked with objects, there are large numbers or piles of them on it; a table stacked with glasses; shelves stacked with files.

​if a surface is stacked with objects, there are large numbers or piles of them on it. a table stacked with glasses; shelves stacked with files.

​to keep increasing in quantity until there is a large pile, a long line, etc. Cars quickly stacked up behind the bus. During the strike, refuse has been ...