1
: a person who is confined to home, a room, or bed because of illness or incapacity
2
: a narrow gorge-shaped part of an otherwise wide valley
3
: available oil or gas which is not being produced from an existing well
1
: confined to one's home or an institution by illness or incapacity
2
a
: secretive, brooding
a bitter, shut-in face Claudia Cassidy
b
: tending to avoid social contact : withdrawn
the shut-in personality type S. K. Weinberg

shut in

3 of 3

verb

shut in; shutting in; shuts in

transitive verb

1
2
: to prevent production of (oil or gas) by closing down a well

Examples of shut-in in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Noun
Like Wick, Nathan Caine (Quaid) is an unassuming, socially awkward shut-in who possesses a unique set of dormant skills, which get unleashed by unpredictable (and exceptionally violent) external forces. Gregory Nussen, Deadline, 8 Mar. 2025

Word History

First Known Use

Noun

1891, in the meaning defined at sense 1

Adjective

1909, in the meaning defined at sense 1

Verb

14th century, in the meaning defined at sense 1

Time Traveler
The first known use of shut-in was in the 14th century

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Cite this Entry

“Shut-in.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/shut-in. Accessed 25 Mar. 2025.

Kids Definition

shut-in

noun
ˈshət-ˌin
: a sick person unable to go outdoors

Medical Definition

: a person who is confined to home, a room, or bed because of illness or incapacity
1
: confined to one's home or an institution by illness or incapacity
2
: tending to avoid social contact : withdrawn
diagnostic and prognostic significance of the shut-in personality type S. K. Weinberg

More from Merriam-Webster on shut-in

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