Some of the words in this dictionary are trademarked to commercial companies. In order to avoid being hit for not saying so, the following trademarks are acknowledged - let's hope no-one has been missed out...
- Advanced D&D TSR Ltd.
 - Air Warrior Kesmai Corporation
 - Apricot ACT plc.
 - Archimedes Acorn Computers Ltd.
 - B-17 Boeing
 - B-29 Boeing
 - B-52 Boeing
 - British Legends CompuServe Inc. & MUSE Ltd.
 - BT British Telecommunications plc.
 - CompuNet CompuNet Ltd.
 - CompuServe CompuServe Inc.
 - D&D TSR Ltd.
 - DEC-10 Digital Equipment Corporation
 - Glaxo Glaxo Group plc.
 - IBM PC International Business Machines
 - M68020 Motorola Inc.
 - Macro-10 Digital Equipment Corporation
 - MS-DOS Microsoft Corporation
 - OS9 Microware Systems Corporation &
 - Motorola Inc.
 - Prestel British Telecommunications plc.
 - PR1ME Prime Computers
 - Sinclair AMSTRAD plc.
 - Spectrum AMSTRAD plc.
 - Turbo Pascal Borland International Inc.
 - Unix AT&T
 - VAX Digital Equipment Corporation
 - VMS Digital Equipment Corporation
 - Zork Infocom