am
1 Americanverb
abbreviation
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Electronics. amplitude modulation: a method of impressing a signal on a radio carrier wave by varying its amplitude.
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Radio. a system of broadcasting by means of amplitude modulation.
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of, relating to, or utilizing such a system.
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Asian male.
abbreviation
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America.
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American.
abbreviation
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before noon.
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the period from midnight to noon, especially the period of daylight prior to noon.
Shall we meet Saturday a.m.?
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a morning newspaper, sometimes issued shortly before midnight.
verb
symbol
abbreviation
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associate member
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Assembly Member (of the National Assembly of Wales)
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Albert Medal
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Master of Arts
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Also: am. amplitude modulation
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See a.m.
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Member of the Order of Australia
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Armenia (international car registration)
abbreviation
abbreviation
abbreviation
abbreviation
Usage
The abbreviation a.m. for Latin ante merīdiem, meaning “before noon,” refers to the period from midnight until noon. One minute before noon is 11:59 a.m. One minute after noon is 12:01 p.m. Many people distinguish between noon and midnight by saying 12 noon and 12 midnight. Expressions combining a.m. with morning ( 6 a.m. in the morning ) and p.m. with afternoon, evening, or night ( 9 p.m. at night ) are redundant and occur most often in casual speech and writing. Both a.m. and p.m. sometimes appear in capital letters, especially in printed matter.
Etymology
Origin of am1
First recorded before 900; Middle English; Old English am, eam, eom; cognate with Gothic im, Old Norse, Armenian em, Old Irish am (from unattested esmi ), Attic Greek eimí, Aeolic Greek émmi, Doric Greek ēmí (all from prehistoric Greek esmi ), Hittite esmi, early Lithuanian esmì, Old Church Slavonic yesmĭ, Albanian jam (from unattested esmi ), Sanskrit ásmi, from unattested Proto-Indo-European ésmi, from root es- “to be” + -m 1st person singular + -i, present-time marker; cf. is
Origin of AM3
First recorded in 1935–40
Origin of a.m.6
From Latin ante merīdiem
Origin of A.M.7
A.M. ( def. 2 ) from Latin Artium Magister
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
See Examples For:
That kind of pressure is a privilege - I am doing well and playing well.
From BBC ● Jul. 26, 2026
“I am overwhelmed and extremely proud that my son paid me that ‘mustache’ remark.
From Los Angeles Times ● Jul. 26, 2026
"I am pained to see the events of the past 10 days. This is not a matter of personal prestige for me," Pradhan said in a statement posted on social media platform X.
From Barron's ● Jul. 25, 2026
"I'm so grateful that I am able to share my triumphs, most especially my recent run at Wimbledon, with the country," Eala said at the reception.
From BBC ● Jul. 25, 2026
But it does raise the question: What kind of person am I?
From "Split the Sky" by Marie Arnold
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Nouzille concedes that these documents are not "final proof" that Libya was targeting Pan Am 103 flight, but he believes this is evidence of their modus operandi.
From BBC ● Jul. 25, 2026
A follow-up photographic survey confirmed the wreckage was of the Clipper Endeavor, providing images that revealed the Pan Am logo and aircraft's name were still visible on the fuselage.
From BBC ● Jul. 22, 2026
Am I supposed to watch myself and imitate myself?
From Los Angeles Times ● Jul. 6, 2026
Am I emphasizing it was meaningless because the USA lost the game?
From The Wall Street Journal ● Jun. 26, 2026
Ours was a baby blue Pontiac Trans Am, which flew past, then screeched to a stop on the shoulder a hundred yards or so down the road, in a cloud of gravelly dust.
From "A Walk in the Woods" by Bill Bryson
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On July 7, 2026, at approximately 6:50 AM CT, ICE law enforcement attempted to conduct a vehicle stop as part of a targeted enforcement operation to arrest an illegal alien.
From Salon ● Jul. 11, 2026
Until now, however, scientists had not attempted to estimate and map the physical density and worldwide distribution of AM fungal networks themselves.
From Science Daily ● Jun. 15, 2026
In 2025, they reported $413 billion worth, according to insurance ratings firm AM Best, twice as much as in 2020.
From The Wall Street Journal ● May 26, 2026
Station owner Audacy will end simulcast of the news format on 1070 AM and launch the Fan on May 11.
From Los Angeles Times ● May 5, 2026
I AM making friends and now you’re giving him to Josh!
From "Mockingbird" by Kathryn Erskine
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The label ‘Negroes’ was commonplace in America through the 1960s—and as late as the 2010 census, a category of ‘Black, African Am., or Negro’ remained, but the Census Bureau subsequently dropped that label.
From The Wall Street Journal ● Nov. 19, 2025
"I. Am. The. Fury!" she intones before executing a somewhat flawless flying reverse turning kick.
From Salon ● Sep. 2, 2023
By the end, her work has had an impact at home, too — her baby sister marching around repeating her words: “I. Am. Not. Sorry!”
From New York Times ● Nov. 5, 2021
“I am stressed out. And when I say I am stressed out — I. Am. Stressed. Out.”
From Washington Post ● Aug. 31, 2021
“It reminds me, too, of how worthless I was. Am. How I couldn’t protect my work family. Not then. How I can’t protect my family now. Look at this place.”
From "Towers Falling" by Jewell Parker Rhodes
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According to the criminal complaint, Truelove sneaked into a restricted area of the Rockefeller Plaza lobby just before 9 a.m. on July 16, following an employee who used an identification card to swipe in.
From Los Angeles Times ● Jul. 24, 2026
U.S. economic data due Friday include the S&P flash services and manufacturing purchasing managers surveys for July, released at 9:45 a.m.
From MarketWatch ● Jul. 24, 2026
On farms, harvest crews can start at 2 a.m. and work throughout the day.
From The Wall Street Journal ● Jul. 24, 2026
Los Angeles police officers responded to the bridge at about 8 a.m. after the man was spotted climbing the bridge, said Officer Charles Miller with the Los Angeles Police Department.
From Los Angeles Times ● Jul. 24, 2026
“That big dinner made me snoozelly. I’m hitting the hay. Five a.m. comes awfully early.”
From "Dog Squad" by Chris Grabenstein
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“Overall, there are benefits to the use of telematics,” said Chris Draghi, a director at A.M.
From Los Angeles Times ● Jul. 20, 2026
With advances in technology, insurers have been accelerating investments in telematics, data and artificial intelligence, including to better predict driver risk and set rates, according to insurer ratings agency A.M.
From Los Angeles Times ● Jul. 20, 2026
We’d love to hear it and will relay some of the best tales a week from now in the Markets A.M.
From The Wall Street Journal ● Jun. 8, 2026
Insurance shoppers can also measure an insurer’s financial strength by checking its credit rating through agencies like A.M.
From MarketWatch ● Apr. 16, 2026
It was 2:00 A.M. before another ride got me all the way to Coalwood.
From "October Sky" by Homer Hickam
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.