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

Some Berkshire watchers think the company’s holdings in Amazon. com, VeriSign, Capital One Financial, Visa, and Mastercard could be Combs’ investments.

From Barron's • Feb. 13, 2026

“Crypto dot com Arena? Staples Center is so stapled to my brain that I can’t call it anything else.”

From Los Angeles Times • Nov. 6, 2024

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

At Snowberger’s the smells of pumpkin pie and com bread dressing upstairs mingled with the etherlike smells from downstairs, where Daddy worked on Myrtis Rogers, getting her ready for a Saturday funeral.

From Each Little Bird That Sings by Deborah Wiles