A.m.

adj, adv, noun

adj, adv, noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    Initialism of anno mundi. abbreviation, alt-of, countable, initialism, uncountable
  2. 2
    the period between midnight and noon wordnet
  3. 3
    Initialism of Master of Arts. abbreviation, alt-of, countable, initialism, uncountable
Adjective
  1. 1
    Initialism of ad modum. abbreviation, alt-of, initialism, not-comparable
Adverb
  1. 1
    Alternative form of a.m. (“before noon”). alt-of, alternative, not-comparable
  2. 2
    In the 12-hour period from midnight to noon (the first half of the day) when using the 12-hour clock. not-comparable

    "Greenfield … Monday thru Friday, 9 to 12 a.m."

Adverb
  1. 1
    before 12 noon wordnet

Example

More examples

"Greenfield … Monday thru Friday, 9 to 12 a.m."

Etymology

Abbreviation of ante meridiem (“before noon”).

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.