COM

COM can refer to:

.com, Internet top-level domain
COM file (short for "command"), a simple MS-DOS executable format
Hardware Communication Ports (COM:), prefix in Microsoft Windows and MS-DOS operating system
Component Object Model, popularized by Microsoft
COM (manga magazine), an alternative manga magazine founded by Osamu Tezuka
Center Of Mass
Coal-Oil Mixture
College of Marin, a community college in Kentfield, California in the USA.
Commander of the Order of Merit of the Police Forces (Canadian decoration post-nominal letters)
Communications
Comoros (ISO trigram country code)
Computer (also "Computer player", in video games)
Corporal, Captain or Colonel of U.S. Marines
Kingdom Hearts: Chain of Memories, a video game for the Game Boy Advance.

see also: com.