login

noun

the process by which individual access to a computer system is controlled by identifying and authenticating the user through the credentials presented by the user
the credentials required during the login process

Pronunciation: /ˈlɒɡ.ɪn/

A surname.
A hamlet in Cilymaenllwyd community, west Carmarthenshire, Wales (OS grid ref SN1623).

Etymology: A deverbal from log in.

Credentials: the combination of a user's identification and password used to enter a computer, program, network, etc.
“I've forgotten my login again.”
“If you’re currently confused considering she [Billie Eilish] made $50 million in one year—don’t forget about how high Billie’s taxes must be and how high her expenses presumably are. Anyway, if you need me, I’ll be here using my friend’s ex’s mom’s Netflix log-in.”
The process or an instance of logging in.
“Your login failed because you weren't connected to the office network.”

Etymology: A deverbal from log in.