ante meridiem
adjective
an·te me·ri·di·em
ˌan-ti-mə-ˈri-dē-əm 
-dē-ˌem
: being before noon
—abbreviation AM, a.m., or (British) am
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“Ante meridiem.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ante%20meridiem. Accessed 31 Dec. 2024.
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ante meridiem
adjective
an·te me·ri·di·em
ˌant-i-mə-ˈrid-ē-əm
-ē-ˌem
: being before noon
—abbreviation a.m.
Etymology
Latin
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