Origin: Greek suffix -gon
Definition, synonyms and related words
A combination of a user's identification and password used to enter a computer.
"The system rejected my logon because I had forgotten part of my password."
In plain English: A logon is your personal password and username that lets you get into an account on a computer or phone.
"He forgot his logon, so he couldn't access his account to check his emails."
Usage: Use logon as both the noun referring to your credentials and the verb meaning to sign in, though many style guides prefer logging on or signing in for actions. Avoid confusing it with login when you specifically mean the combination of username and password required for access.
Misspelling of log on.
"The system rejected my attempt to type logon instead of typing log on correctly."
Logon is a shortened form of the phrase "log on," which originally referred to the act of signing into a computer system or database. The word entered English as a noun derived directly from this common verb phrase used in computing contexts.