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Definition of logon

logon

/ˈlɔːɡ.ɑːn/
log · on
Plural:logons
•
Past Simple:logoned
•
Past Participle:logoned
•
Present Participle:logoning
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logon Lexical Profile

logon Game Scores & Validity

• noun

1

The act or process of gaining access to a computer system, network, or application by entering user credentials such as a username and password.

Example

"The system administrator locked the account after three failed logon attempts."

Synonyms
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Antonyms
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• verb

1

To gain access to a computer system, network, or online account by entering identifying credentials (usually written as two words, 'log on').

Example

"Users must logon to the secure portal before downloading confidential documents."

Synonyms
View all synonyms for logon
Antonyms
View all antonyms for logon

Word Nuance & Usage

In standard usage, the unspaced form 'logon' (or 'log-on') functions primarily as a noun or attributive modifier (e.g., 'logon credentials'), whereas the spaced two-word phrasal verb 'log on' is strongly preferred for the verbal action.

• Nearby Words

logjam
logo
logoff
logon
logone
logone river
logonic

Cite this Entry

Wordmom. (2026). Definition of Logon. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/logon
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