am
1 of 5present tense first-person singular of be
Am
2 of 5abbreviation (1)
America; American
Am
3 of 5symbol
americium
AM
4 of 5noun
ˈā-ˌem 
often attributive
: a broadcasting system using amplitude modulation
also : a radio receiver of such a system
AM
5 of 5abbreviation
1
airmail
2
air marshall
3
Air Medal
4
[Latin anno mundi] in the year of the world —often printed in small capitals
5
or a.m. or British am ante meridiem
6
[New Latin artium magister] master of arts
7
associate member
8
chiefly British Assembly Member
9
Ave Maria
Word History
Etymology
Middle English, from Old English eom; akin to Old Norse em am, Latin sum, Greek eimi
Noun
amplitude modulation
First Known Use
Noun
1939, in the meaning defined above
Kids Definition
am 1 of 3
present tense first person singular of be
Am.
2 of 3abbreviation
1
America
2
American
a.m.
3 of 3abbreviation
variants or A.M.
before noon
Hint: The abbreviation a.m. is short for the Latin phrase ante meridiem, which means "before noon."
Medical Definition
Am 1 of 2
symbol
americium
AM
2 of 2abbreviation
1
[Latin ante meridiem] before noon
2
[Medieval Latin Artium Magister] master of arts