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Synonyms

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

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

noun

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

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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]

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

It's just the empty terminal you used to log in for the last time.

From The Wall Street Journal • Apr. 12, 2026

"We tried to log in yesterday, and it seems to be still working, but we hope that this decision will be reversed."

From Barron's • Feb. 12, 2026

Without his phone, he could not log in and his streak reset instantly.

From BBC • Jan. 30, 2026

If you have stacked loans from different lenders, log in to each provider portal and create a master spreadsheet of your total balances, due dates and remaining payments.

From MarketWatch • Jan. 8, 2026

Something about seeing her there alone on that log, in that field, with her tennis shoes in a plié, makes me remember why I liked her a few months ago.

From "Landscape with Invisible Hand" by M.T. Anderson

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.