Monitor Definition

mŏnĭ-tər

monitored, monitoring, monitors

noun

monitors

A person who advises, warns, or cautions.

Webster's New World

One that admonishes, cautions, or reminds, especially with respect to matters of conduct.

American Heritage

A pupil who assists a teacher in routine duties.

American Heritage

In some schools, a student chosen to help keep order, record attendance, etc.

Webster's New World

A video display or speaker used in a production studio to check audio or video quality.

The sound engineer detected a hiss on the monitor.

American Heritage

Synonyms:

verb

monitored, monitoring, monitors

To observe, check on, or regulate the performance of (a machine, an employee, etc.)

Webster's New World

To check the quality of (transmission) with or as with a monitor.

Webster's New World

To listen in on (a foreign broadcast, telephone conversation, etc.) as for gathering political or military information.

Webster's New World

To keep track of systematically with a view to collecting information.

Monitor the bear population of a national park; monitored the political views of the people.

American Heritage

To watch or check on (a person or thing) as a monitor.

Webster's New World

Synonyms:

Antonyms:

pronoun

Any of several publications e.g. the "Christian Science Monitor".

Wiktionary

(freemasonry) A text of works or instruction which are not secret and may be written e.g. "Indiana Monitor and Freemasons' Guide".

Wiktionary

Other Word Forms of Monitor

Singular:

monitor

Plural:

From Latin monitor (“warner"), from perfect passive participle monitus (“warning"), from verb monere (“to warn, admonish, remind")

From Wiktionary
Latin from monēre to warn men-¹ in Indo-European roots

From American Heritage Dictionary of the English Language, 5th Edition