| Acronym | Definition |
|---|
| CW | Continuous Wave (radar) |
| CW | Clockwise |
| CW | Conventional Wisdom |
| CW | Chemical Warfare |
| CW | Call Waiting |
| CW | Country/Western (music) |
| CW | Consistent With |
| CW | Commonwealth |
| CW | Crewe (postcode, United Kingdom) |
| CW | Civil War |
| CW | Cold War |
| CW | Cook Islands |
| CW | Colonial Williamsburg |
| CW | Clone Wars (Star Wars) |
| CW | Cornwall |
| CW | Chemical Week (magazine) |
| CW | Cold Weather |
| CW | Creative Writing |
| CW | Cold Water |
| CW | Coursework (education) |
| CW | Cingular Wireless |
| CW | Copywriter |
| CW | Child Welfare |
| CW | Christopher Walken |
| CW | Complied With |
| CW | Cable & Wireless plc. (telecommunications company) |
| CW | Chicken Wings |
| CW | Civil Works |
| CW | Cooling Water |
| CW | Control Word |
| CW | Chemical Weapon(s) |
| CW | Clan War (gaming) |
| CW | Chest Wall |
| CW | Chilled Water |
| CW | Cyber War |
| CW | Current Weight |
| CW | Caseworker |
| CW | Carrier Wave |
| CW | Concealed Weapon |
| CW | Catherine Wheel (band) |
| CW | Chief Warrant Officer (US Army) |
| CW | Calendar Week |
| CW | Crimean War |
| CW | Cyberworlds (International Conference) |
| CW | Celtic Woman (musical group from Ireland) |
| CW | Conference on Cyberworlds |
| CW | Cyber Warfare |
| CW | Circulating Water |
| CW | CBS Warner (TV network) |
| CW | Carat Weight (precious minerals) |
| CW | Cooperating Witness |
| CW | Clay Walker (country music artist) |
| CW | Common Worship |
| CW | ClarisWorks |
| CW | Command Word |
| CW | CBS and Warner Bros (televison network) |
| CW | Cold Worked (metal fabrication) |
| CW | Cross Wind |
| CW | Condenser Water |
| CW | CrimeWatch |
| CW | Carbonated Water |
| CW | Concern Worldwide |
| CW | Carnauba Wax |
| CW | Castle Wars (gaming, Runescape) |
| CW | Congress Watch |
| CW | Crossworlds |
| CW | Computing with Words |
| CW | Complete Warrior (Dungeons & Dragons book) |
| CW | Combat Wing |
| CW | Cold Welding |
| CW | Coalition Warfare |
| CW | Compuworld |
| CW | Cat's Whisker |
| CW | CustomWare (methodology for custom services and training on rapidly evolving technologies; The New CustomWare Company) |
| CW | Complaining Witness |
| CW | Composite Wave |
| CW | Crumbling Walls (quorum protocol) |
| CW | Classic Wizard |
| CW | Carson Wagonlit (travel agency) |
| CW | Continuous Working-Level Monitoring (radon measurement) |
| CW | Championship White (Acura Integra Type R color) |
| CW | Correlation Window |
| CW | Communications Wing |
| CW | Creative Wonders (learning games company) |
| CW | Crimson Wave |
| CW | Column Waste |
| CW | Coders Workshop (UK programmers' conference) |
| CW | Contractor Westinghouse (electronic tubes made by Westinghouse Canada for US Army) |
| CW | CalcWare |
| Cw | Wave-Making Resistance Coefficient (Naval architecture) |
| CW | Claremont Winds (Claremont, CA) |
| CW | Contraband Watch (prisons) |
| CW | Corner Kicks Won (soccer) |
| CW | Counterintelligence Warfare |
| CW | Cushman & Wakefield LLC |
| CW | Complywise Ltd (UK) |
| CW | Converter Workshop |
| CW | Connetquot West, Inc (Farmingdale, NY) |