Stack

Stack may refer to:

Mathematics

Stack (mathematics), a generalization of schemes in algebraic geometry and of sheaves, including algebraic stacks, Artin stacks, and Deligne–Mumford stacks

Stack (abstract data type), abstract data type and data structure based on the principle of Last In First Out (LIFO)
- Stack (C++), a C++ standard container, simulating a stack
Stack (software) a tool to build Haskell projects and manage their dependencies
Call stack, stack data structure that stores information about the active subroutines of a computer program
- Stack-based memory allocation
Stacks (Mac OS), a folder view on the Dock of Mac OS X
Protocol stack, a particular software implementation of a computer networking protocol suite
Solution stack, a group of software systems, increasing in abstraction from bottom to top

Flue gas stacks, the industrial terminology for an industrial plant chimney
Guitar amplifier stack, as used in guitar terminology
Smoke stack, a chimney
- Funnel (ship), the smokestack or chimney on a ship
Stack interchange, a free-flowing grade separated junction between two roads
- The Stack, the interchange of I-10 and I-17 in Phoenix, Arizona
Stacking (chemistry), also called pi stacking, refers to attractive, noncovalent interactions between aromatic rings

Stack (library architecture) (or stacks), compactly spaced bookshelves, integral to a building's structure, housing large collections of books
Stack (geology), a large vertical column of rock in the sea
Stack magazine, a bimonthly publication about high school sports
Consonant stacking, a feature of some South Asian writing systems
Operation Stack in Kent, England – parking lorries on the M20 when Channel crossings are disrupted