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Synonyms

shack

1 American  
[shak] / ʃæk /

noun

shacks plural
  1. a rough cabin; shanty.

  2. Informal. radio shack.


verb phrase

  1. shack up

    1. to live together as spouses without being legally married.

    2. to have illicit sexual relations.

    3. to live in a shack.

      He's shacked up in the mountains.

shack 2 American  
[shak] / ʃæk /

verb (used with object)

Informal.
  1. to chase and throw back; to retrieve.

    to shack a ground ball.


shack 1 British  
/ ʃæk /

noun

  1. a roughly built hut

  2. temporary accommodation put together by squatters

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

verb

  1. See shack up

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
shack 2 British  
/ ʃæk /

verb

  1. dialect to evade (work or responsibility)

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Noun Inflected Forms

Etymology

Origin of shack1

1875–80, compare earlier shackly rickety, probably akin to ramshackle ( Mexican Spanish jacal “hut” is a phonetically impossible source)

Origin of shack2

1825–35, apparently special use of dial. shack to shake

Explanation

A shack is a small, rundown building used as a shelter. To shack is to live somewhere. If you tell your parents you want to shack up with your best friend, prepare to get grounded. A shack is a tiny, crude shelter that one person might be living in. It’s not well maintained, and it probably has peeling paint and a leaky roof. A shack is a big step below a house and a small step above a refrigerator box. To shack is to live somewhere, especially somewhere that's not nice. Shacking up is kind of like crashing on someone’s couch, or living somewhere temporarily.

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Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

So far, they have been to chains including the Tex-Mex staple Chipotle and the famous hamburger shop Shake Shack, as well as small, independently-run restaurants.

From BBC • Jun. 19, 2026

Shake Shack recently cut its outlook for the second quarter of 2026, citing a challenging consumer environment and intensifying competition.

From Barron's • Jun. 10, 2026

Shake Shack still plans to open about eight licensed premises during the second quarter.

From The Wall Street Journal • Jun. 2, 2026

Shake Shack on Thursday also said it had appointed Michelle Hook as its new CFO, a move that takes effect May 11.

From MarketWatch • May 7, 2026

The Toad stomped out of the Shack, muttering under his breath the whole way.

From "The Kill Order (Maze Runner, Book Four; Origin)" by James Dashner

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