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1. To access a digital account or network, typically by entering personal credentials; to sign in. I'm having trouble logging in to my computer, so I haven't had a chance to check my email yet.
2. To allow someone to digital account or network; to sign someone in. In this usage, a noun or pronoun can be used between "log" and "in." I've having trouble accessing my account from home—any chance IT can log me in remotely?
3. To spend and record certain amount of time doing something. In this usage, a noun or pronoun can be used between "log" and "in." I've logged nearly 60 hours in this game so far. Please be aware that we are unable to pay overtime at the moment, so please be sure not to log in more than 40 hours of work each week.
Farlex Dictionary of Idioms. © 2022 Farlex, Inc, all rights reserved.
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]
The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
1. To provide the necessary information to a computer for someone to be allowed to access computer resources; log on: I'll log you in so that you can access the library's resources. I sat at the terminal and logged in using my student account.
2. To spend some amount of time working: We've logged in 100 hours working on this project.
The American Heritage® Dictionary of Phrasal Verbs. Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.