[ kom, see-oh-em ]

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

Origin of com

First recorded in 1980–85; shortening of commercial or company

Other definitions for COM (2 of 5)

[ kom ]

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

  2. computer output on microfilm.

Other definitions for com- (3 of 5)


  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.

Origin of com-

<Latin, variant of preposition cum with

Other definitions for com. (4 of 5)


  1. comedy.

  2. comma.

  1. command.

  2. commander.

  3. commerce.

  4. commercial.

  5. commission.

  6. commissioner.

  7. committee.

  8. common.

  9. commonly.

  10. communications.

Other definitions for Com. (5 of 5)


  1. Commander.

  2. Commission.

  1. Commissioner.

  2. Committee.

  3. Commodore.

  4. Commonwealth. Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

How to use com in a sentence

  • We may also notice that com'th is a monosyllable , whereas trewely has three syllables, though in l. 35 it makes but two.

  • The com-tech was answering the question Raf had almost forgotten that he had asked the moment before.

    Star Born | Andre Norton
  • Raf's eyes met Soriki's, and the com-tech's hand dropped to hook fingers in his belt within touching distance of his side arm.

    Star Born | Andre Norton
  • In his ear buzzed the comforting hum of the com, tying him with the flitter and so, in a manner, to safety.

    Star Born | Andre Norton
  • And having fixed Soriki's face, he tried to believe that he was now confronting the com-tech, speaking directly to him.

    Star Born | Andre Norton

British Dictionary definitions for com (1 of 4)


the internet domain name for
  1. a commercial company

British Dictionary definitions for COM (2 of 4)


/ (kɒm) /

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

    • (as modifier): a COM machine

Origin of COM

(C) omputer (O) utput on (M) icrofilm

British Dictionary definitions for com- (3 of 4)


  1. together; with; jointly: commingle

Origin of com-

from Latin com-; related to cum with. In compound words of Latin origin, com- becomes col- and cor- before l and r, co- before gn, h, and most vowels, and con- before consonants other than b, p, and m. Although its sense in compounds of Latin derivation is often obscured, it means: together, with, etc (combine, compile) ; similar (conform); extremely, completely (consecrate)

British Dictionary definitions for Com. (4 of 4)


abbreviation for
  1. Commander

  2. committee

  1. Commodore

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Cultural definitions for .com


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

Notes for .com

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

Notes for .com

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

The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.