Sign in
/'saɪn ɪn/A2
Beginner
1. To register one's presence by entering name or credentials, usually on a computer or at a location.
- Please sign in at the front desk when you arrive.
- I need to sign in to my email to check for new messages.
2. To begin an online session, typically on a website or app, by entering user information.
- I forgot my password, so I couldn't sign in.
- The website requires users to sign in to access premium content.
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