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sign in

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90% of the time, speakers of English use just 7,500 words in speech and writing. These words appear in red, and are graded with stars. One-star words are frequent, two-star words are more frequent, and three-star words are the most frequent.

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phrasal verb
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present tense
I/you/we/theysign in
he/she/itsigns in
present participlesigning in
past tensesigned in
past participlesigned in
  1. 1
    [intransitive/transitive] to write your name on an official list when you arrive at a place

    All visitors must sign in at the front desk.

    sign someone in:

    He's signed you in and is waiting for you inside.

See also main entry: sign

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