log-in

Noun

login (plural logins)

1. Credentials: the combination of a user's identification and password used to enter a computer, program, network, etc.
   • I've forgotten my login again.

   Synonyms:

   logon, sign-in, sign-on

2. The process or an instance of logging in.
   • Your login failed because you weren't connected to the office network.

   Synonyms:

   logon, log-on, sign-in, sign-on

   Antonyms:

   logoff, logout

See all 4 meanings of login

Verb

log in (third-person singular simple present logs in, present participle logging in, simple past and past participle logged in)

1. (intransitive, transitive) To gain access to a computer system, usually by providing a previously registered username and password.
   • I would like to log in to check my e-mail, but I can't remember my password.

   Synonyms:

   log on, sign in, sign on, log into

   Antonyms:

   log off, log out, sign off, sign out

2. (transitive) To be placed at a certain ranking.
   • Their cover version of Bobby "Blue" Bland's "Turn On Your Love Light" logged in at number 80 in 1968.1990, Wayne Jancik, The Billboard Book of One-Hit Wonders, →ISBN, page 209