Sign in phrase informal
To record one's or another's attendance or arrival in a log book or register
All guests must sign in at the front desk.
To log in.
Only premium members can sign in and download!
To allow someone to log into a digital account or network.
Hey guys, can you sign me in to Facebook? I'm having difficulty logging into my account.
The act of inputting personal credentials to get access to a digital account or network.
Please fill in your pin code to complete the sign-in.
To sign a document that one loses or gives up his or her property or legal rights
To refer to a clear sign that something bad will probably occur.
Positive signs that a situation is in the process of improvement, especially an economic situation.
To sign one's name in some documents or materials
The verb "sign" should be conjugated according to its tense.
To be very wet
Because of forgetting bringing an umbrella, I look like a drowned rat when it rains.