| Acronym | Definition |
|---|
| D4D➣Direct for Diesel |
| D4D➣Dogs for Diabetics (Concord, CA) |
| D4D➣Drive for Diversity (National Association for Stock Car Auto Racing) |
| D4D➣Dynamics for Display (various locations) |
| D4D➣Downtown for Democracy (New York) |
| D4D➣Design for Demise (space debris) |
| D4D➣Devices for Dignity (healthcare technology cooperative; UK) |
| D4D➣Designing for Dissemination (US NCI; Bethesda, MD) |
| D4D➣Dollars for Democrats (political group) |