| Acronym | Definition |
|---|
| CSIW➣Corrugated Substrate Integrated Waveguide (microwave theory) |
| CSIW➣Cognitive Strategy Instruction in Writing |
| CSIW➣Centre for the Strategic Initiatives of Women (Washington, DC) |
| CSIW➣Care Standards Inspectorate of Wales |
| CSIW➣Cracked Steam Installation Wizard (software) |