Usually means: Loose, excess, or unused capacity.
Definitions Related words Phrases (New!) Mentions Lyrics History Colors (New!)
We found 47 dictionaries that define the word slack:

General (26 matching dictionaries)
  1. slack: Longman Dictionary of Contemporary English
  2. slack: Merriam-Webster
  3. slack, slack: Oxford Learner's Dictionaries
  4. slack, slack, slack: American Heritage Dictionary of the English Language
  5. slack: Collins English Dictionary
  6. slack: Vocabulary.com
  7. Slack, slack: Wordnik
  8. slack: Cambridge Advanced Learner's Dictionary
  9. Slack, slack: Wiktionary
  10. slack: Webster's New World College Dictionary, 4th Ed.
  11. slack: The Wordsmyth English Dictionary-Thesaurus
  12. slack: Infoplease Dictionary
  13. slack: Dictionary.com
  14. slack (adj.), slack (n.): Online Etymology Dictionary
  15. slack: Cambridge Essential American English Dictionary
  16. Slack (project management), Slack (river), Slack (software), Slack: Wikipedia, the Free Encyclopedia
  17. Slack: Online Plain Text English Dictionary
  18. slack: Webster's Revised Unabridged, 1913 Edition
  19. slack: Rhymezone
  20. slack: AllWords.com Multi-Lingual Dictionary
  21. slack: Webster's 1828 Dictionary
  22. slack: FreeDictionary.org
  23. slack: Mnemonic Dictionary
  24. slack: TheFreeDictionary.com

Art (3 matching dictionaries)
  1. Epicurus.com Coffee Glossary (No longer online)
  2. Shakespeare Glossary (No longer online)
  3. SLACK: Bobs Byway OF POETIC TERMS

Business (5 matching dictionaries)
  1. MoneyGlossary.com (No longer online)
  2. Construction Term Glossary (No longer online)
  3. Slack: Wideman Comparative Glossary of Project Management Terms
  4. slack: Legal dictionary
  5. BusinessDictionary.com (No longer online)

Computing (2 matching dictionaries)
  1. slack: Free On-line Dictionary of Computing
  2. slack: Encyclopedia

Medicine (2 matching dictionaries)
  1. online medical dictionary (No longer online)
  2. slack: Medical dictionary

Miscellaneous (1 matching dictionary)
  1. slack: Idioms

Science (1 matching dictionary)
  1. slack: PlanetMath Encyclopedia

Slang (2 matching dictionaries)
  1. slack, slack, slack, slack: Green’s Dictionary of Slang
  2. Slack: Urban Dictionary

Tech (5 matching dictionaries)
  1. AUTOMOTIVE TERMS (No longer online)
  2. Glossary of Coal Mining Terms (No longer online)
  3. SLACK: Glossary of Nautical Terms
  4. SeaTalk Dictionary of English Nautical Language (No longer online)
  5. Slack: Latitude Mexico

(Note: See slacked as well.)

Definitions from Wiktionary (
)
American English Definition British English Definition
noun:  (uncountable) The part of anything that hangs loose, having no strain upon it.
noun:  (countable) A tidal marsh or shallow that periodically fills and drains.
noun:  (uncountable, psychotherapy) Unconditional listening attention given by client to patient.
adjective:  (normally said of a rope) Lax; not tense; not firmly extended.
adjective:  Weak; not holding fast.
adjective:  Moderate in some capacity.
adjective:  Moderately warm.
adjective:  Moderate in speed.
adjective:  Lacking diligence or care; not earnest or eager.
adjective:  Not active or busy, successful, or violent.
adjective:  Excess; surplus to requirements.
adjective:  (slang, Caribbean, Jamaica) Vulgar; sexually explicit, especially in dancehall music.
adjective:  (linguistics) Lax.
adverb:  Slackly.
verb:  (ambitransitive) To slacken.
verb:  (obsolete) To mitigate; to reduce the strength of.
verb:  To lose cohesion or solidity by a chemical combination with water; to slake.
verb:  To refuse to work as hard as one is supposed to.
noun:  (rail transport) A temporary speed restriction where track maintenance or engineering work is being carried out at a particular place.
noun:  (countable) A valley, or small, shallow dell; a sag or saddle in a ridge.
noun:  A flat-bottomed, hollow zone within a sand-dune system that has developed over impervious strata, sometimes due to erosion or blow-out of the dune system; its flat base level is therefore close to or at the permanent water-table level, and therefore has rich, marshy flora, with Salix species (willows) as typical woody colonisers.
noun:  (mining) Small coal; coal dust.
noun:  A surname.
noun:  A place in England:
noun:  A hamlet in Ashover parish, North East Derbyshire district, Derbyshire (OS grid ref SK3362).
noun:  A hamlet in Heptonstall parish, Metropolitan Borough of Calderdale, West Yorkshire (OS grid ref SD9828).
noun:  A hamlet in the Metropolitan Borough of Kirklees, near Outlane, West Yorkshire (OS grid ref SE0817).
noun:  (Internet, software) A real-time collaboration app and platform launched in 2013.

Similar:

Opposite:

Types:

Phrases:

Adjectives:

Colors:
    gray,     blue,     green,     purple,     red, more...



Word origin

Words similar to slack

Usage examples for slack

Idioms related to slack

Wikipedia articles (New!)

Popular adjectives describing slack

Popular nouns described by slack

Words that often appear near slack

Rhymes of slack

Invented words related to slack

Similar:

Opposite:

Types:

Phrases:

Adjectives:

Colors:
    gray,     blue,     green,     purple,     red, more...



Writing poetry or lyrics? You can find related words that match a given meter.
This feature is permanently available from the "Related words" tab and from the Thesaurus.





Home   Reverse Dictionary / Thesaurus   Datamuse   Word games   Spruce   Feedback   Dark mode   Help


Threepeat

Find common ground

Play Now

Compound Your Joy

Find connection

Play Now

Pandergram

Foster inclusion

Play Now