DictionaryAI

a.m.

ay EM/ˌeɪ ˈɛm/

2 meanings of a.m.

Practice

  1. 1
    adverb
    In the morning hours from midnight until noon, on a 12-hour clock.

    The meeting starts at 9 a.m. sharp.

    I usually wake up around 6 a.m. on weekdays.

    Note
  2. 2
    adjectiveinitialism
    Initialism of ad modum. It is a short Latin label meaning "in the manner of."
    Note

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Origin

Short for the Latin phrase ante meridiem, which means "before noon."