monitor

noun
mon·​i·​tor | \ ˈmä-nə-tər How to pronounce monitor (audio) \

Definition of monitor

 (Entry 1 of 2)

1a : 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

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

monitor

verb
monitored; monitoring\ ˈmä-​nə-​t(ə-​)riŋ How to pronounce monitoring (audio) \

Definition of monitor (Entry 2 of 2)

transitive verb

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

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Other Words from monitor

Noun

monitorial \ ˌmä-​nə-​ˈtȯr-​ē-​əl How to pronounce monitorial (audio) \ adjective
monitorship \ ˈmä-​nə-​tər-​ˌship How to pronounce monitorship (audio) \ noun

Synonyms for monitor

Synonyms: Verb

cover, watch

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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.
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Recent Examples on the Web: Noun

Last year, however, international monitors declared that the eradication campaign had stalled. The Economist, "Pakistan is trying new tactics to eliminate polio," 4 July 2019 Electronic monitors have emerged as a popular alternative to keeping someone behind bars. Ava Kofman, ProPublica, "Have You Worn an Electronic Monitoring Device or Supervised Someone Wearing One? We Want to Hear About It.," 3 July 2019 These monitors don’t have any external controls on them, including a power button. Sam Byford, The Verge, "LG UltraFine 4K Display (2019) review: bigger isn’t better," 2 July 2019 Despite the short leash, lifers tend to be less likely to violate probation, said DOC program and policy monitor Bill Hafner. Ryan Faircloth, Twin Cities, "The life sentence they got for murder came with a chance at parole. Will these Minnesota ‘lifers’ get out?," 29 June 2019 The save was reviewed by VAR officials in a studio in Paris, then by North Korean referee Ri Hyang-ok on a sideline monitor at the stadium. San Diego Union-Tribune, "Column: Soccer’s bungled attempt at video review is latest reason why we should rethink it," 28 June 2019 Federal monitors who happened to be in New Orleans related to the consent decree on Monday were present at the crime scene that spanned Prytania Street between Robert and Upperline streets. Emily Lane, nola.com, "‘No alternative’: NOPD addresses uptick in police shootings," 21 June 2019 State air quality monitors don't measure the precise content of dust, but the storms track through farm fields, livestock feedlots, industrial areas, unpaved roadways, landfills and old mines. AZCentral.com, "Summer storms are a spectacle, but the dust in them is hazardous to your health," 18 June 2019 Local wildlife rescue and rehabilitation organization, City Wildlife, is helping National Geographic staff monitor the nest. Natasha Daly, National Geographic, "Watch live: A Canada goose is nesting at National Geographic headquarters," 23 Apr. 2019

Recent Examples on the Web: Verb

The kit allows him to monitor Flex’s 16,000 suppliers and 100-plus factories, producing everything from automotive systems to cloud-computing kit for over 1,000 customers worldwide. The Economist, "Global supply chainsSupply chains are undergoing a dramatic transformation," 11 July 2019 The storm is closely being monitored by weather officials, who also warned the public to take necessary precautions, the Chronicle reported. Rebecca Hennes, Houston Chronicle, "Readers share hurricane prep tips they wish they had known about sooner," 10 July 2019 Beaches on Mississippi’s barrier islands, which run parallel to the mainland, are still open, but are being monitored for any signs of harmful algae. Brigit Katz, Smithsonian, "Toxic Algal Bloom Forces Mississippi to Close All Its Mainland Beaches," 10 July 2019 Under the nuclear deal, the cap for enrichment was set at 3.67%, a percentage closely monitored by inspectors from the International Atomic Energy Agency, the U.N.'s nuclear watchdog. CBS News, "Iran ignores Trump's warning, breaks another nuclear deal limit on uranium enrichment," 8 July 2019 Preeclampsia can lead to complications for both the mother and baby, including early delivery, so it must be carefully monitored. Felissa Allard, SELF, "These Are The Pregnancy Pains You Shouldn’t Ignore," 8 July 2019 Fitness trackers Fitness trackers are an easy way for exercisers to monitor their physical activity. Elizabeth Lawrence, USA TODAY, "Vaping, juice cleanses, fitness trackers: Some 'healthy' trends are riskier than you think," 4 July 2019 Hotshots were stationed in the area to monitor fire activity. Rocky Baier, azcentral, "Woodbury Fire 25% contained as crews work to protect property near Arizona highways," 23 June 2019 One unexpected set of sensors at the Manassas factory is there to monitor seismic activity. Wayne Rash, Ars Technica, "Manufacturing memory means scribing silicon in a sea of sensors," 21 June 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'monitor.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of monitor

Noun

1530, in the meaning defined at sense 1a

Verb

1924, in the meaning defined above

History and Etymology for monitor

Noun and Verb

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

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Statistics for monitor

Last Updated

14 Jul 2019

Look-up Popularity

Time Traveler for monitor

The first known use of monitor was in 1530

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More Definitions for monitor

monitor

noun

English Language Learners Definition of monitor

 (Entry 1 of 2)

: a device that shows information or images on a screen
: a device that is used to listen to sounds being made in another room
: a device that shows and records information about a condition or function of the body

monitor

verb

English Language Learners Definition of monitor (Entry 2 of 2)

: to watch, observe, listen to, or check (something) for a special purpose over a period of time

monitor

noun
mon·​i·​tor | \ ˈmä-nə-tər How to pronounce monitor (audio) \

Kids Definition of monitor

 (Entry 1 of 2)

1 : a video screen used for display (as of television pictures or computer information)
2 : a student in a school picked for a special duty (as keeping order)
3 : a person or thing that watches or checks something a heart monitor

monitor

verb
monitored; monitoring

Kids Definition of monitor (Entry 2 of 2)

: to watch or check for a special reason Nurses monitored the patient's heart rate.

monitor

noun
mon·​i·​tor | \ ˈmän-ət-ər How to pronounce monitor (audio) \

Medical Definition of monitor

 (Entry 1 of 2)

: one that monitors especially : a device for observing or measuring a biologically important condition or function a heart monitor

monitor

transitive verb
monitored; monitoring\ ˈmän-​ət-​ə-​riŋ, ˈmän-​ə-​triŋ How to pronounce monitoring (audio) \

Medical Definition of monitor (Entry 2 of 2)

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

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Comments on monitor

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