verb (used with object), logged, log·ging.
verb (used without object), logged, log·ging.
- Also log on, sign on.Computers. to enter identifying data, as a username or password, into a database, mobile device, or computer, especially a multiuser computer or a remote or networked system, so as to to access and use it: Log in to start your work session. Log in to your account to pay your bill online.
- to enter or include any item of information or data in a record, account, etc.
Origin of log1
Related formslog·gish, adjectiveun·logged, adjective
Definition for log in (2 of 2)
noun Also log-in, logon.
verb (used without object)
And yet, this gluing together of terms like login, logon, backup, and setup as verbs is common, especially in writing about computers. Not for everyone, however. Some well-known software companies, for example, carefully maintain the distinction in their programs and documentation.
But habits are difficult to change. Those who react to the one-word verb as an error will probably have to get used to it, and those who use the one-word verb will have to recognize that others will see it and wince.
British Dictionary definitions for log in (1 of 3)
British Dictionary definitions for log in (2 of 3)
- a section of the trunk or a main branch of a tree, when stripped of branches
- (modifier) constructed out of logsa log cabin
- a detailed record of a voyage of a ship or aircraft
- a record of the hours flown by pilots and aircrews
- a book in which these records are made; logbook
- a device consisting of a float with an attached line, formerly used to measure the speed of a shipSee also chip log
- heave the log to determine a ship's speed with such a device
verb logs, logging or logged
Word Origin for log
British Dictionary definitions for log in (3 of 3)
Science definitions for log in
Idioms and Phrases with log in (1 of 2)
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]
Idioms and Phrases with log in (2 of 2)
In addition to the idiom beginning with log
- log in
- easy as pie (rolling off a log)
- like a bump on a log
- sleep like a log