AM

¹

abbreviation

1. Electronics.,  amplitude modulation: a method of impressing a signal on a radio carrier wave by varying its amplitude.

2. Radio.,  a system of broadcasting by means of amplitude modulation.

3. of, relating to, or utilizing such a system.

4. Asian male.

Am.

²

abbreviation

1. America.

2. American.

a.m.

³

abbreviation

1. before noon.

2. the period from midnight to noon, especially the period of daylight prior to noon.

   Shall we meet Saturday a.m.?

3. a morning newspaper, sometimes issued shortly before midnight.

Am

⁴

Symbol, Chemistry.

1. americium.

A.M.

⁵

abbreviation

1. a.m.

2. Master of Arts.

A/m

⁶

1. ampere per meter.

am

⁷

[am, uhm, m]

verb

1. 1st person singular present indicative of be.

am

¹

abbreviation

1. Armenia

A/M

²

abbreviation

1. Air Marshal

am

³

abbreviation

1. See AM

2. See a.m.

Am

⁴

symbol

1. americium

AM

⁵

abbreviation

1. associate member

2. Assembly Member (of the National Assembly of Wales)

3. Albert Medal

4. Master of Arts

5. Also: am. amplitude modulation

6. See a.m.

7. Member of the Order of Australia

8. Armenia (international car registration)

Am.

⁶

abbreviation

1. America(n)

am

⁷

verb

1. (used with I) a form of the present tense (indicative mood) of be 1

a.m.

⁸

abbreviation

1. ante meridiem Compare p.m.

AM

1. Abbreviation of amplitude modulation

Usage

The abbreviation a.m. for Latin ante merīdiem, meaning “before noon,” refers to the period from midnight until noon. One minute before noon is 11:59 a.m. One minute after noon is 12:01 p.m. Many people distinguish between noon and midnight by saying 12 noon and 12 midnight. Expressions combining a.m. with morning ( 6 a.m. in the morning ) and p.m. with afternoon, evening, or night ( 9 p.m. at night ) are redundant and occur most often in casual speech and writing. Both a.m. and p.m. sometimes appear in capital letters, especially in printed matter.

Word History and Origins

Origin of AM¹

First recorded in 1935–40

Origin of AM²

From Latin ante merīdiem

Origin of AM³

A.M. ( def. 2 ) from Latin Artium Magister

Origin of AM⁴

First recorded before 900; Middle English; Old English am, eam, eom; cognate with Gothic im, Old Norse, Armenian em, Old Irish am (from unattested esmi ), Attic Greek eimí, Aeolic Greek émmi, Doric Greek ēmí (all from prehistoric Greek esmi ), Hittite esmi, early Lithuanian esmì, Old Church Slavonic yesmĭ, Albanian jam (from unattested esmi ), Sanskrit ásmi, from unattested Proto-Indo-European ésmi, from root es- “to be” + -m 1st person singular + -i, present-time marker; is

Word History and Origins

Origin of AM¹

Old English eam; related to Old Norse em, Gothic im, Old High German bim, Latin sum, Greek eimi, Sanskrit asmi

Origin of AM²

Latin: before noon

Example Sentences

She went to Texas A&M to study engineering, but when her hands-on lab classes stopped because of Covid, college became less enjoyable.

Read more on The Wall Street Journal

A research team led by Dr. Ke Huang at Texas A&M University has created a patch designed to support heart repair following a heart attack.

Read more on Science Daily

Several fire officials previously told The Times that they were not aware of wind shifting to the west until around 2 a.m, but the report shows that the signs were there earlier, both in wind measurements and in 911 calls.

Read more on Los Angeles Times

They share the night and part ways in the a.m.—only to discover, quite awkwardly, that Henri is the heir to the Cassell grapes.

Read more on The Wall Street Journal

Originally located on the island of Cyprus, the Institute of Nautical Archaeology soon moved to the campus of Texas A&M, where it has flourished ever since.

Read more on Literature

Related Words

• dawn