| Acronym | Definition |
|---|
| NSDD➣National Security Decision Directive |
| NSDD➣NATO (North Atlantic Treaty Organization) Standardization Document Database |
| NSDD➣Non-Sustained Disruptive Discharges (vacuums) |
| NSDD➣Nuclear Structure and Decay Data (International Atomic Energy Agency) |
| NSDD➣Network Security Design Document |
| NSDD➣Non-Scatter Density Dependent |
| NSDD➣Non-Shakespearian Drama Database (collaborative project) |