Slack.
A surname.
Meaning & usage
A surname.
A place in England: A hamlet in Ashover parish, North East Derbyshire district, Derbyshire (OS grid ref SK3362).
A place in England: A hamlet in Heptonstall parish, Metropolitan Borough of Calderdale, West Yorkshire (OS grid ref SD9828).
A place in England: A hamlet in the Metropolitan Borough of Kirklees, near Outlane, West Yorkshire (OS grid ref SE0817).
A real-time collaboration app and platform launched in 2013.
Where this word comes from
* 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.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.