Slack most commonly refers to:

Slack, the absence of tension in physics Slack (software), a team communication tool that can be used for collaboration

Slack or Slacks may also refer to:

Places Slack, West Yorkshire, a village in Calderdale, England Slack (river), a river in Pas-de-Calais department, France The Slack, a village in County Durham, England Slacks Creek, Queensland, Australia, a suburb of Logan City

Science and technology Slack (project management), the time that a task in a project network can be delayed without delaying subsequent tasks or the overall project Slack bus, an electrical power regulating system used to conduct load flow studies Slack tub, used by a blacksmith to quench hot metal Slack variable, a mathematical concept File slack, a kind of computer internal fragmentation

People Slack (surname), a list of people

Other uses Slacks, another name for trousers Slack Technologies, an American software company responsible for Slack software Slack Technologies, LLC v. Pirani, a U.S. Supreme Court securities law case Slack, the central belief of the parody religion Church of the SubGenius Slack, the valley or trough between dunes Slack action, free movement due to loose couplings between railway cars Slack coal, fragments of coal and coal dust; for example used in the Birchills Power Station Resource slack, the level of availability of a resource to a business

See also

SLAC (disambiguation) Slak (disambiguation) Slacker, a person who habitually avoids work or lacks work ethic Slackness (Jamaican music), a crude or bawdy subgenre of dancehall music Slackware, a Linux distribution