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 monitor (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 monitor (audio) \ adjective
monitorship \ ˈmä-​nə-​tər-​ˌship How to pronounce monitor (audio) \ noun

Synonyms for monitor

Synonyms: Verb

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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 The report recommends adopting stricter air quality regulations that are up for a vote by the board of the region's air quality monitor on May 7. NBC News, "'Treated like sacrifices': Families breathe toxic fumes from California's warehouse hub," 27 Apr. 2021 Working 24 hours a day, controllers will occupy a room at the south terminal watching monitor screens instead of looking out windows. Kevin Spear, orlandosentinel.com, "New windows for Orlando airport: 1,000 pounds each, 300 feet tall, requiring crane to install," 26 Apr. 2021 In the latest election cycle, two-thirds of all cigarette industry donations went to the Republicans, data from lobbying monitor OpenSecrets shows. Carol Ryan, WSJ, "Biden Administration Resparks an Old Danger for Cigarette Stocks," 20 Apr. 2021 When the two finished up their duet, Jewel walked off and watched on a monitor backstage as Hunter received feedback from the judges. Kayla Keegan, Good Housekeeping, "Katy Perry’s Criticism of an 'American Idol' Contestant Got Jewel Worked Up Backstage," 11 Apr. 2021 The Japanese company has a great reputation for making superb studio monitor headphones and turntable cartridges. Mark Sparrow, Forbes, "This Affordable Condenser Microphone From Audio-Technica Won’t Let You Down," 9 Apr. 2021 Experts say monitor lizards can grow to be some 9 feet long, with males generally growing larger than females. Jennifer Hassan, Anchorage Daily News, "6-foot lizard scaling shelves in Thai 7-Eleven has customers shrieking," 9 Apr. 2021 She was seated in her usual spot: a white ergonomic gaming chair by Mavix, before a 27-inch HP Omen gaming monitor in the bedroom of her new modern home just outside of Beverly Hills. New York Times, "Valkyrae Gets a Big Chair in the Gaming World," 7 Apr. 2021 Mobile data has also been disabled for the 19th day, according to internet monitor Netblocks. Laura Smith-spark, CNN, "Myanmar junta orders internet blackout as more pro-democracy protesters are detained," 2 Apr. 2021 Recent Examples on the Web: Verb The Wall Street Journal reported Wednesday that the bank built up $20 billion in exposure to investments related to Archegos, but struggled to monitor them. Margot Patrick, WSJ, "Credit Suisse Taps Investors for Cash After Archegos Loss Widens," 22 Apr. 2021 He has been placed on suicide watch, meaning prison guards will monitor him around the clock. Joseph Simonson, Washington Examiner, "Inside Derek Chauvin's new home: Maximum-security prison that has never seen an escape," 21 Apr. 2021 Villanueva, the sheriff, announced an investigation into the sharing of the photos in March 2020, before the suit was filed, and asked the county’s Office of Inspector General to monitor it. New York Times, "Vanessa Bryant Uses Her Platform to Battle the Powerful," 19 Apr. 2021 Doctors will always monitor him for signs of rejection. Lauren Caruba, San Antonio Express-News, "‘You’re not supposed to be here’," 7 Apr. 2021 With regard to the new guidelines, the CDC says that vaccinated people should still monitor themselves before and after travel and wash or sanitize their hands frequently. William Petri, The Conversation, "You can fly! CDC says fully vaccinated people can travel safely within the US," 2 Apr. 2021 Healthy people infected with salmonella should monitor themselves for some or all of the following symptoms: nausea, vomiting, diarrhea or bloody diarrhea, abdominal cramping and fever, the notice said. Kelly Tyko, USA TODAY, "Pet food recall: Select Midwestern Pet Foods' dog and cat food recalled for potential salmonella risk," 30 Mar. 2021 Each day brought calls, texts or both to monitor her and her two children, who tested negative. Jennifer Peltz, Star Tribune, "As contact tracing ebbs in parts of US, NYC stays committed," 26 Mar. 2021 Each day brought calls, texts or both to monitor her and her two children, who tested negative. Fox News, "As coronavirus contact tracing ebbs in parts of US, NYC stays committed," 26 Mar. 2021

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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Time Traveler for monitor

Time Traveler

The first known use of monitor was in 1530

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Statistics for monitor

Last Updated

5 May 2021

Cite this Entry

“Monitor.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/monitor. Accessed 7 May. 2021.

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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 monitor (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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