noun, verb ·Rare ·Advanced level

Definitions

Noun

1. 1
   credentials: the combination of a user's identification and password used to enter a computer.

   "Using the same logon for different systems can be a security risk."

2. 2
   The process of logging on.

   "The user's desktop is displayed shortly after logon."

Verb

1. 1
   Misspelling of log on. alt-of, misspelling

Synonyms

All synonyms

log-inloginsign-insign-onlogin

Antonyms

All antonyms

logofflogoutsign-outsignoff

Example

More examples

"Using the same logon for different systems can be a security risk."

Etymology

Deverbal from log on.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.