[sahyn-in] ExamplesWord Origin noun

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

Origin of sign-in First recorded in 1945–50; noun use of verb phrase sign in Examples from the Web for sign-in Contemporary Examples of sign-in

  • Richardson disguised model consent forms as “sign-in” papers for a topless shoot.

    How Terry Richardson Paid His Way Out of Trouble

    The Daily Beast

    June 17, 2014

  • Word Origin and History for sign-in n.

    1968, from the verbal phrase; see sign (v.) + in (adv.).

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