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sign in - definition and synonyms

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phrasal verb
Word Forms
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.

  2. 2
    [transitive] if you sign in something that you have borrowed, you write your name on an official list to show that you have returned it
See also main entry: sign


to manipulate someone psychologically so that they begin to question their own perceptions and memories

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Open Dictionary

Dunning-Kruger effect

the phenomenon by which an incompetent person is too incompetent to understand his own incompetence

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