| Abbreviation | Definition |
|---|---|
| DEAF | Deaf Equality And Access Forum |
| DEB | Debate |
| DEB | Debate Evidence Blocker |
| DEC | Drug Enforcement Commission |
| DECA | Division Of Enforcement And Compliance Assistance |
| DED | Danger Extreme Deviant |
| DED | deferred enforced departure |
| DED | Directive Enforcement Department |
| DEET | Drug Eradication Enforcement Team |
| DEF | Defend |
| DEF | Defile |
| DEL | Delegate |
| DELF | Defence Extradition Lawyers Forum |
| DENIAL | Don't Even Notice I Am Lying |
| DEP | Don't Expect Protection |
| DEPT | Department |
| DEW | Drop Everything and Walk |
| DF | Dangerous Fiend |
| DF | Drunken Freeloader |
| D-F | Dodd-Frank |