com

¹ American  

[kom, see-oh-em] / kɒm, ˈsiˈoʊˈɛm /

1. (on the internet) a top-level domain appearing as a suffix on domain names used for commercial establishments.

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COM ² American  

[kom] / kɒm /

noun

1. Trademark. Comedy Central: a cable television channel.

2. computer output on microfilm.

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com- ³ American  

1. a prefix meaning “with,” “together,” “in association,” and (with intensive force) “completely,” occurring in loanwords from Latin (commit ): used in the formation of compound words before b, p, m: combine; compare; commingle.

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com. ⁴ American  

abbreviation

1. comedy.

2. comma.

3. command.

4. commander.

5. commerce.

6. commercial.

7. commission.

8. commissioner.

9. committee.

10. common.

11. commonly.

12. communications.

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Com. ⁵ American  

abbreviation

1. Commander.

2. Commission.

3. Commissioner.

4. Committee.

5. Commodore.

6. Commonwealth.

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Com. ¹ British  

abbreviation

1. Commander

2. committee

3. Commodore

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com ² British  

abbreviation

1. a commercial company

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com- ³ British  

prefix

1. together; with; jointly

   commingle

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COM ⁴ British  

/ kɒm /

noun

1. 1. a process in which a computer output is converted direct to microfiche or film, esp 35 or 16 millimetre film

   2. ( as modifier )

      a COM machine

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.com Cultural  

1. Part of the Internet address of many companies and organizations. It indicates that the site is commercial, as opposed to educational or governmental.

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Discover More

The phrase dot-com is used to refer generically to almost anything connected to business on the Internet.

The explosive growth of wealth connected to the Internet in the 1990s is often said to have created many “dot-com millionaires.”

Etymology

Origin of com¹

First recorded in 1980–85; shortening of commercial ( def. ) or company ( def. )

Origin of com-³

< Latin, variant of preposition cum with

Example Sentences

There is a lot in the Bloomstran analysis for Berkshire watchers who want to get a good grasp of the com plex company amid the leadership transition.

From Barron's • Feb. 26, 2026

The statue is the first to celebrate a rom com on Leicester Square's Scenes in the Square trail.

From BBC • Nov. 17, 2025

O cavalo Caramelo foi salvo com vida por bombeiros gaúchos e de São Paulo.

From Seattle Times • May 9, 2024

We’ll see you back in your inbox tomorrow—and in the meantime, keep an eye out for our coverage of the third GOP debate on Slate dot com!

From Slate • Nov. 8, 2023

They stayed in the fodder house all that day, lying on top of the com, listening to the drip of the rain, waiting for dark, when they would set out.

From "Harriet Tubman: Conductor on the Underground Railroad" by Ann Petry