Slack

A surname.

Proper noun

  1. A surname.
  2. A place in England:

    1. A hamlet in Ashover parish, North East Derbyshire district, Derbyshire (OS grid ref SK3362).

    2. A hamlet in Heptonstall parish, Metropolitan Borough of Calderdale, West Yorkshire (OS grid ref SD9828).

    3. A hamlet in the Metropolitan Borough of Kirklees, near Outlane, West Yorkshire (OS grid ref SE0817).

  3. A real-time collaboration app and platform launched in 2013.
    • On Slack, the employees of Strategic Programming chattered about metadata tagging issues. - 2025, Liz Pelly, Mood Machine: The Rise of Spotify and the Costs of the Perfect Playlist, 1st edition, New York: Atria Books,...

Origin

* As an English and Dutch surname, from the adjective slack. * Also as an English surname, from the noun slack (“shallow valley”). * Possibly also a Slovene surname Americanized from slak (“bindweed”), from Proto-Slavic *sъvolkъ. * The name of the software is an acronym of Searchable Log of All Conversation and Knowledge.

Forms

Slacks