Definition of log in (or on) in US English:

log in (or on)

phrasal verb

  • Go through the procedures to begin use of a computer, database, or system.

    • ‘When a user logs in, he or she is initially at Home Page view.’
    • ‘It was a UNIX system, and I logged on as root every day without their knowledge.’
    • ‘Every user needs to log in with a legitimate username/password combination to post references and comments.’
    • ‘These lines list the time at which the login attempt was made, the user who tried to log in as another user, if available, and the target user.’
    • ‘In Figure 2, one can see from the IP addresses that the root user was logged in from different clients.’
    • ‘Since you are already identifying users when they log in, returning preferred style sheets would be a snap.’
    • ‘That witness told the jury of the warnings on the screen of the Police National Computer when an officer logged on to the computer to obtain data.’
    • ‘Users who have not logged in to the system are invited to do so if they already have an account or to join the system as a member if they do not yet have an account.’
    • ‘This program will continue downloading even after you log out.’
    • ‘Mulder logged out of his computer and headed for the door.’
    • ‘Furiously, Cassie logs out of her computer, disturbed by the somewhat cryptic message.’
    • ‘You must follow a strict procedure when you log out of the network and pull out the card, lest you have to reboot to reconnect.’
    • ‘Users log in with their e-mail addresses and a password to access the bug database.’
    • ‘Using call-back, the user calls the computer and logs on, then the computer hangs up and calls back to the number authorized for the user.’
    • ‘You need a computer to log on to the Internet, but Internet cafés are not hard to find in Japan.’
    • ‘I logged out of my computer as Brandon's communicator rung.’
    • ‘In order to get access, a user should log in into the system.’
    • ‘This ID is what lets Napster know a banned computer is trying to log on.’
    • ‘The workstations ran Windows XP Pro, and all students logged in using a single user name and password local to the workstation.’
    • ‘Attempting to log on to the online service results in a blank page.’
    • ‘Sputnik requires users to log in before using the system, so a wireless network provider knows who's tapping its resources.’
    • ‘At the end of the day Josh shut down his computer and logged out.’
    • ‘He turned his computer on, logged on to a search engine, and searched under ‘sniper’.’
    • ‘They can set up and store personal settings on the system which are activated every time they log on.’
    • ‘I sat by a computer and logged on with the username and password I had been given with my timetable.’
    • ‘When a user running Internet Explorer logs on to a contaminated site, the user's PC is infected with malicious code, which has the potential to cause further problems.’
    • ‘On our return to the apartment I opened my laptop and logged on to my e-mail.’
    • ‘Erin returns home and quickly goes to her computer and logs on using Nic's screenname.’
    • ‘Conspiracy theorists at Brunel say academics have logged on to their computers to vote only to find someone else has already done so for them.’
    • ‘Make sure you are logging on to a legitimate website by typing in the URL rather than using a link.’