| Acronym | Definition |
| 3D | Three-dimensional space |
| 3G | Global Governance Group |
| ADSL | Asymmetric Digital Subscriber Line |
| AEOI | Automatic Exchange of Information |
| AMAC | The Association of Mature American Citizens |
| ADN | Advanced Digital Network |
| APEC | Asia Pacific Economic Cooperation |
| ASCII | American Standard Code for Information Interchange |
| ASEAN | Association of South East Asian Nations |
| BBS | Bulletin Board System |
| BSC | Business Support Co-ordinator |
| BTW | By The Way |
| CAA | Competent Authority Agreement |
| CAR | Construction All Risks Insurance |
| CATP | Caffeine Access Transport Protocol |
| CBI | Confederation of British Industry |
| CCR | Central Control Room |
| CDA | Common Data Access |
| CFO | Chief Financial Officer |
| CGI | Common Gateway Interface |
| CGT | Capital Gains Tax |
| COIN | Completions Intervention Network |
| CPI | International' Corruption Perceptions Index' |
| CPIB | Corrupt Practices Investigation Bureau |
| CRS | Common Reporting Standard |
| CSA | Cyber Security Agency |
| CTC | Counter Terrorist Checks |
| CV | Curriculum Vitae |
| DB | Distribution Board |
| DCS | Distributed Control System |
| DEA | Drug Enforcement Agency (USA) |
| DEAL | Data Environment Associated with Lift |
| DfEE | Department for Education and Employment |
| DRA | Default Retirement Age |
| DSAR | Data Subject Access Request |
| DSL | Digital Subscriber Line |
| E&I | Electrical and Instrumentation |
| E&OE | Errors and Omissions Excepted |
| EBITDA | Earnings Before Interest, Taxes, Depreciation and Amortisation |
| ECA | Export Credit Agency |
| ECGD | Export Credits Guarantee Department |
| ECI | Estimated Chargeable Income |
| EIA | Environmental Impact Assessment |
| EPOS | Electronic Point of Sale |
| FAQ | Frequently Asked Questions |
| FDDI | Fiber Distributed Data Interface |
| FEED | Front End Engineering Design |
| FEM | Finite Element Method |
| FIs | Financial Institutions |
| FLI | Forward Looking Infrared |
| FOI | Freedom of Information |
| FOSS | Forum of Small States |
| FSAScot | Fellow of the Society of Antiquaries of Scotland |
| FTP | File Transfer Protocol |
| GIF | Graphic Interchange Format |
| GUI | Graphical User Interface |
| HILF | HSE Industry Liaison Forum |
| HMG | Her Majesty' Government' |
| HMSO | Her Majesty' Satationery Office' |
| HMT | Her Majesty' Theatre (Aberdeen)' |
| HMT | Her Majesty' Treasury' |
| HTML | Hyper Text Markup Language |
| IBAN | International Bank Account Number |
| ICT | Information and Communications Technology |
| IE | Instrument Earth |
| IMAP | Internet Message Access Protocol |
| IMDA | Info-communications Media Development Authority |
| IMHO | In My Humble Opinion |
| IMS | Interim Management Statement |
| IP | Intellectual Property |
| IPO | Initial Public Offering |
| IR | Inland Revenue |
| IRAS | Inland Revenue Authority of Singapore |
| ISDN | Integrated Service Digital Network |
| ISP | Internet Service Provider |
| ITF | Innovation and Technology Forum |
| JPEG | Joint Photographic Experts Group |
| KTP | Knowledge Transfer Partnership |
| LAN | Local Area Network |
| LAWS | Lethal Autonomous Weapons Systems |
| LD | Liquidated Damages |
| MIME | Multipurpose Internet Mail Extensions |
| MRT | Mass Rapid Transit |
| MUFA | Mono Unsaturated Fatty Acids |
| MUSE | Multi-User Simulated Environment |
| NATO | No Action, Talk Only |
| NIC | Network Information Centre |
| NINJA | No Income, No Job, No Assets |
| NNTP | Network News Transport Protocol |
| NOA | Notice of Assessment |
| OECD | The Organisation for Economic Co-operation and Development |
| P&A | Plug and Abandon |
| PAP | People' Action Party' |
| PDQ | Pretty Dash- Quick' |
| PNG | Portable Network Graphics |
| POP | Point of Presence also Post Office Protocol |
| PPP | Point to Point Protocol |
| PSTN | Public Switched Telephone Network |
| PUFA | PolyUnsaturated Fatty Acids |
| PVC | Poly Vinyl Chloride |
| REMF | Real Estate Mutual Fund |
| RevPAR | Revenue Per Available Room |
| ROW | Rest of the World |
| RSS | Rich Site Summary |
| SDSL | Symmetric Digital Subscriber Line |
| SFA | Saturated Fatty Acids |
| SICC | Singapore International Commercial Court |
| SIM | Subscriber Identity Module Card |
| SIMC | Singapore International Mediation Centre |
| SLIP | Serial Line Internet Protocol |
| SMDS | Switched Multimegabit Data Service |
| SMEs | Small to Medium Sized Enterprises |
| SMTP | Simple Mail Transfer Protocol |
| SNMP | Simple Network Management Protocol |
| SOSR | Some Other Substantial Reason |
| SPN | Stretch Performance Network |
| SPV | Special Purpose Vehicle |
| SQL | Structured Query Language |
| SSL | Secure Socket Layer |
| SWIFT | Society for Worldwide Interbank Financial Telecommunication |
| SYSOP | System Operator |
| TCP | Transmission Control Protocol |
| TMT | Technology, Media and Telecommunications |
| TT | Telegraphic Transfer |
| TULRA | Trade Union Labour Relations Act |
| UDP | User Datagram Protocol |
| URI | Uniform Resource Identifier |
| URL | Uniform Resource Locator |
| URLs | Uniform Resource Locators |
| URN | Uniform Resource Name |
| VAIO | Video Audio Integrated Operation |
| VPN | Virtual Private Network |
| WAIS | Wide Area Information Servers |
| WAN | Wide Area Network |
| WIPO | World Intellectual Property Organization |
| WWW | World Wide Web |
| XML | eXtensible Markup Language |