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• com
  com

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

  noun

  Comedy Central: a cable television channel.
• com-
  com-

  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.
• com.
  com.

  abbreviation

  comedy.
• Com.
  Com.

  abbreviation

  Commander.
• .com
  .com

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

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  

/ 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. ² British  

abbreviation

1. Commander

2. committee

3. Commodore

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com ³ British  

abbreviation

1. a commercial company

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com- ⁴ British  

prefix

1. together; with; jointly

   commingle

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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

First, the Act adopts the guaranteed issue and com- munity rating requirements.

From MSNBC • Jun. 25, 2015

Prodigies like Arnold  were the superstars of the industry, com- manding respect as a  result  of  the  enormous  sums  of  money they’d  made.

From MSNBC • Jun. 4, 2014

The company’s walled- garden approach brought huge numbers of new users to networked com- puting in the United States.

From Scientific American • Jun. 20, 2013

It was received with this same sense of urgency and hands-on involvement, starting an avalanche of critique, coding, collaboration, and com- mentary.

From Scientific American • Jun. 18, 2013

But if I’m honest with myself, maybe I’m not really com- fortable there, either.

From "The Queen of Water" by Laura Resau