Meanings
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1
verb
First-person singular present of "be".
I am a teacher at the local school.
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2
adv
In the period from midnight to noon (a.m.).
My flight leaves at 6 am tomorrow.
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3
noun
A type of radio broadcasting (amplitude modulation).
That station is available on both AM and FM.
Thesaurus
Etymology
Etymology tree Proto-Indo-European *h₁es- Proto-Indo-European *h₁ésmi Proto-Germanic *immi Proto-West Germanic *im Old English eom Middle English am English am From Middle English am, em, from Old English eam, eom (“am”), from Proto-West Germanic *im, from Proto-Germanic *immi, *izmi (“am”, form of the verb *wesaną (“to be; dwell”)), from Proto-Indo-European *h₁ésmi (“to be, to exist”). Cognate with Old Norse em (Old Swedish æm (“am”)), Gothic 𐌹𐌼 (im, “am”), Ancient Greek εἰμῐ́ (eimĭ́, “am”), Old Armenian եմ (em, “am”), Albanian jam (“am”).