/ ˈlɒgɪn; NAmE ˈlɔːg-; ˈlɑːg-/ (also logon ) noun
1.
[ U ] the act of starting to use a computer system, usually by typing a name or word that you choose to use :
If you've forgotten your login ID, click this link.
2.
[ C ] the name that you use to enter a computer system :
Enter your login and password and press 'go'.