a. m.

A form of am — Member of the Order of Australia.

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Meanings

a. m.1

adverba. m. (not comparable)
  1. alternativenot comparableAlternative form of a.m..

    […]; and remain with the outward bound as per last, except the Mary for Calcutta, which sailed at five a. m.

    1823 July 10, The Morning Post, number 16,396
    3 more examples

    Yeſterday at half paſt five a. m. I received information from Captain Hancock, then off Oſtend, that the enemy’s flotilla was hauling out of that pier, and had already twenty-one one-maſted veſſels, and one ſchooner, outſide in the roads;

    1804 May 26, Caledonian Mercury, number 12,905, Edinburgh: […] Robert Allan

    Come again Tuesday at 10 a. m.[…]TUESDAY at 10 a. m. Mr. Oliver Whidden was no sooner in the chair than the dentistress synchronously began dental and verbal operations.

    1930 October 4, Joseph Faus, ““Oh, Miss Dentist!”: Being the ridiculous romance of Oliver Whidden, insurance salesman, who found his love in the cavity of a bad tooth”, in Wisconsin Rapids Daily Tribune, seventeenth year, number 5286, Wisconsin Rapids, Wis., page six

    He goes into an all-night doughnutery at 3:40 a. m. and falls to talking with the lonely counterman, who is a college student as well and who isn’t satisfied with just selling doughnuts and coffee. He looks into things. THIS SAME young man’s bride, also a college student and part-time researcher, came in at 3:55 a. m and her contribution to lore was that the first home air-conditioning unit was seven feet high, six feet wide and twenty feet long and was installed in the three-story mansion of Charlie Gates, son of John W. (Bet-a-Million) Gates.

    1958 October 12, Cumberland Sunday Times, volume LXXXIX, number 281, Cumberland, Md., page four

A. M.2

nounA. M. (uncountable)
  1. alternativeuncountableAlternative form of AM.
adverbA. M. (not comparable)
  1. alternativenot comparableAlternative form of a.m..

    “Train to Richmond at six-thirty a. m.,” I said. “What time is it now?”

    1909, Mary Roberts Rinehart, “In the Dining-Room”, in The Man in Lower Ten, New York, N.Y.: Grosset & Dunlap, →OCLC, page 327
    3 more examples

    At Five A. M. we got almoſt up with the Chace, and found them to be a large Ship and two Frigates.

    1761 September 12, The Newcastle Courant, number 4427, Newcastle upon Tyne

    […]; at Five A. M. the Commodore made the Signal to tack, both Squadrons in company.

    1780 January 7, Drewry’s Derby Mercury, volume XLIX

    His people all rise at five A. M., by the ringing of a bell, as in a ship or a factory.

    1844 December 4, The Raleigh Star and North Carolina Gazette, volume 35, number 49, Raleigh, N.C.
Cite this entry
APA

a. m.. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/a.%20m.

MLA

“a. m..” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/a.%20m.. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “a. m.,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/a.%20m..

Source: a. m. on Wiktionary, CC BY-SA 4.0.