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  • sign-in
    sign-in
    noun
    an act, an instance, or a time of signing in.
  • sign in
    sign in
    verb
    to sign or cause to sign a register, as at a hotel, club, etc
Synonyms

sign-in

American  
[sahyn-in] / ˈsaɪnˌɪn /

noun

  1. an act, an instance, or a time of signing in.


sign in British  

verb

  1. to sign or cause to sign a register, as at a hotel, club, etc

  2. to make or become a member, as of a club

"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

sign in Idioms  
  1. Record one's arrival by signing a register, as in He signed in both himself and his wife. [c. 1930] For the antonym, see sign out.


Etymology

Origin of sign-in

First recorded in 1945–50; noun use of verb phrase sign in

Compare meaning

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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.

Additional “listening sessions” with Ye and rapper Ty Dolla Sign in the U.S. were canceled in April, though organizers did not give a reason.

From Los Angeles Times • Sep. 19, 2024

Sign in and receive news of every wicket plus end of innings and match scores.

From BBC • May 18, 2024

A Sign in Space is a dress rehearsal for scientific organizations to iron out the technical challenges of message sharing and telescope mobilization to confirm signal detection.

From Scientific American • Aug. 3, 2023

Tickets for “The Sign in Sidney Brustein’s Window” with Oscar Isaac and Rachel Brosnahan were as little as $50.

From Washington Times • Jun. 27, 2023

The image of the Sign in which each of the four seasons commenced, became the form under which was figured the Sun of that particular season.

From Morals and Dogma of the Ancient and Accepted Scottish Rite of Freemasonry by Pike, Albert