(heading) A pile or collection of similar objects, such as hay, grain, straw, poles, wood, or any extensive collection.

A smokestack.

(heading) A linear data structure in computing where items are inserted and removed in reverse order, a stack data structure stored in main memory, an implementation of a protocol suite, or a combination of interdependent software components used together on a system.

(mathematics) A generalization of schemes in algebraic geometry and of sheaves.

(geology) A coastal landform, consisting of a large vertical column of rock in the sea.

(library) Compactly spaced bookshelves used to house large collections of books.

(figurative) A large amount of an object.

(military) A pile of rifles or muskets in a cone shape.

(poker) The amount of money a player has on the table.

(heading) A structure in architecture that consists of multiple flues rising above the roof, or a vertical drainpipe.

(Australia, slang) A fall or crash, a prang.

(bodybuilding) A blend of various dietary supplements or anabolic steroids with supposed synergistic benefits.

(aviation) A holding pattern, with aircraft circling one above the other as they wait to land.

(video games) The quantity of a given item which fills up an inventory slot or bag.

(transitive) To arrange in a stack, or to add to an existing stack.

(transitive, card games) To arrange the cards in a deck in a particular manner.

(transitive, poker) To take all the money another player currently has on the table.

(transitive) To deliberately distort the composition of (an assembly, committee, etc.).

(transitive, US, Australia, slang) To crash; to fall.

(gaming) To operate cumulatively.

(aviation, transitive) To place (aircraft) into a holding pattern.

(informal, intransitive) To collect precious metal in the form of various small objects such as coins and bars.

(printing) To have excessive ink transfer.