Definitions of com

1. (. com, " commercial") The top-level domainoriginally for American companies but, since the explosion ofthe World-Wide Web, used by most companies and for vanitydomains of all types, whether in the US or not, often inaddition to country code domains like amazon.co.uk.The term " dot com" is now widely used to refer to any Internetbusiness as in " My dot com turned into a dot bomb".