log in

British  

verb

1. Also: log on.  to enter (an identification number, password, etc) from a remote terminal to gain access to a multiaccess system

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noun

1. Also: login.  the process by which a computer user logs in

log in Idioms  

1. Also, log on. Enter into a computer the information needed to begin a session, as in I logged in at two o'clock, or There's no record of your logging on today. These expressions refer especially to large systems shared by numerous individuals, who need to enter a username or password before executing a program. The antonyms are log off and log out, meaning “to end a computer session.” All these expressions derive from the use of log in the nautical sense of entering information about a ship in a journal called a log book. [c. 1960]

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Example Sentences

The 2026 Oscars will air on ABC, and those with cable subscriptions can also watch the show by logging in to the ABC app or abc.com.

From Los Angeles Times

“Let’s just say she had not logged in and continued to check the website as though she was looking for Taylor Swift tickets,” he said.

From The Wall Street Journal

As a cure for past errors, the stewards of federal land now pursue a robust policy of logging in the national forests and prescribed burns and aggressive tree planting there and in the national parks.

From Los Angeles Times

This requires not only a user name and password, but also another piece of information — like a numeric code sent to your phone — before allowing you to log in successfully.

From Salon

Plus, an unmatched number of global servers let you log in from around the world and hide your location.

From Salon

Related Words

• load