monitor

1 of 2

noun

mon·​i·​tor ˈmä-nə-tər How to pronounce monitor (audio)
1
a
: a student appointed to assist a teacher
b
: one that warns or instructs
monitors and instructors for troops green in the art of warNew York Times
c
: one that monitors or is used in monitoring: such as
(1)
: an electronic device with a screen used for display (as of television pictures or computer information)
(2)
: a device for observing a biological condition or function
a heart monitor
2
3
[Monitor, first ship of the type]
a
: a heavily armored warship formerly used in coastal operations having a very low freeboard and one or more revolving gun turrets
b
: a small modern warship with shallow draft (see draft entry 1 sense 8) for coastal bombardment
4
: a raised central portion of a roof having low windows or louvers for providing light and air
monitorial adjective
monitorship noun

monitor

2 of 2

verb

monitored; monitoring ˈmä-nə-t(ə-)riŋ How to pronounce monitor (audio)

transitive verb

: to watch, keep track of, or check usually for a special purpose
Nurses monitored the patient's heart rate.

Examples of monitor in a Sentence

Noun They watched the press conference on a video monitor in a back room. We put a baby monitor in the nursery. U.N. weapons monitors and inspectors. Verb Nurses constantly monitored the patient's heart rate. We're in a good position to monitor and respond to customer concerns. Government agents have been monitoring the enemy's radio communications. See More
Recent Examples on the Web
Noun
Biles also shared a photo of the blue sky from her plane journey before posting a photo of the trip's route on the TV monitor in front of her seat, which displayed her arrival time as 4:44 with one hour and 33 miles to go. Gabrielle Rockson, Peoplemag, 23 Feb. 2024 Twelve jurors and four alternates appeared riveted Thursday by the scenes captured by LeFleur’s lapel camera video, which played on monitors positioned throughout the courtroom — despite several technical glitches that at times interrupted the video. Meg James, Los Angeles Times, 22 Feb. 2024 But there might be little Mr. Trump can do to thwart one of the judge’s most consequential punishments: extending for three years the appointment of an independent monitor who is the court’s eyes and ears at the Trump Organization. Ben Protess, New York Times, 16 Feb. 2024 Fashioned as either an earring or a ring, the small device can be used to continuously track heart conditions at home The idea originated for Lan during the pandemic, when her grandparents were in need of an at-home heart monitor. Isha Trivedi, The Mercury News, 13 Feb. 2024 Mentor categories will include a tour manager, a band leader/musician, a production manager, a production assistant, a front of house engineer, a monitor engineer, and a lighting director/designer. Jessica Nicholson, Billboard, 13 Feb. 2024 And those on parole are frequently charged for things like ankle monitor rental. Courtney E. Martin, The Christian Science Monitor, 12 Feb. 2024 Say goodbye to the limitations of just a laptop and enjoy the convenience and versatility of a portable monitor extender for a more effective work experience during your travels. Jessica Copeland, Rolling Stone, 7 Feb. 2024 What’s proposed: Expanding the use of Alternatives to Detention (ATD) How that’s different from now: The use of Alternatives to Detention, like ankle monitors and special cell phones used for check-ins with authorities, is already on the rise. Cnn.com, The Mercury News, 6 Feb. 2024
Verb
Put a greater emphasis on monitoring and policing single firm conduct. Seth Joseph, Forbes, 26 Feb. 2024 The Film Bond platform allows all partners on a film — producers, sales agents, distributors — to access a film’s financials from the start and monitor where things stand as production progresses. Nick Vivarelli, Variety, 26 Feb. 2024 To do so, meteorologists have closely monitored sea surface temperatures in the South Pacific and the phenomena known as El Niño and La Ninã. Joe Mathews, Orange County Register, 25 Feb. 2024 The audit affirms reporting by The Arizona Republic in 2022 that found outdated appraisals and limited regulation hamstrung the state from monitoring water use and charging fair market rate on thousands of acres of land leased for agriculture. Stacey Barchenger, The Arizona Republic, 24 Feb. 2024 This is the same path the couple’s yacht took, according to a live tracking map monitored by their sailing club. Lizzie Johnson, Washington Post, 24 Feb. 2024 The cameras are not monitored in real time; instead, investigators will access the network after serious crimes or incidents occur, police have said. Lyndsay Winkley, San Diego Union-Tribune, 23 Feb. 2024 His job is to monitor construction sites for fossils and, when they’re discovered, quickly get them out of the dirt and into safe storage. John Metcalfe, The Mercury News, 23 Feb. 2024 In monitoring multiple Telegram chat rooms, The Times found men who treat children’s Instagram pages and subscription services as menus to satisfy their fantasies. Michael H. Keller, New York Times, 23 Feb. 2024 See More

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'monitor.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

Etymology

Noun and Verb

Latin, one that warns, overseer, from monēre to warn — more at mind

First Known Use

Noun

1530, in the meaning defined at sense 1a

Verb

1924, in the meaning defined above

Time Traveler
The first known use of monitor was in 1530

Dictionary Entries Near monitor

Cite this Entry

“Monitor.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/monitor. Accessed 2 Mar. 2024.

Kids Definition

monitor

1 of 2 noun
mon·​i·​tor ˈmän-ət-ər How to pronounce monitor (audio)
1
a
: a student appointed to assist a teacher
b
: a person that warns or instructs
c
: one that monitors or is used in monitoring
especially : a video screen used for display (as of television pictures or computer information)
2
3
a
: a heavily armored warship having low sides and revolving guns that was used against shipping in harbors and in river patrol
b
: a gunboat used to bombard coastal areas and riverbanks

monitor

2 of 2 verb
monitored; monitoring ˈmän-ət-ə-riŋ How to pronounce monitor (audio)
ˈmän-ə-triŋ
: to watch, observe, or check for a special purpose
monitor a broadcast for sound quality

Medical Definition

monitor

1 of 2 noun
mon·​i·​tor ˈmän-ət-ər How to pronounce monitor (audio)
: one that monitors
especially : a device for observing or measuring a biologically important condition or function
a heart monitor

monitor

2 of 2 transitive verb
1
: to watch, observe, or check closely or continuously
monitor a patient's vital signs
2
: to test for intensity of radiations especially if due to radioactivity

More from Merriam-Webster on monitor

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