| Acronym | Definition |
|---|
| FD | Feed |
| FD | Fire Department |
| FD | Friend |
| FD | File Descriptor |
| FD | Free Download |
| FD | Front Derailleur (bike part) |
| FD | Fail(ed) Dangerous |
| FD | Fixed Deposit |
| FD | Father's Day |
| FD | Floppy Disk |
| FD | Foundation Degree |
| FD | Finance Director |
| FD | Flight Deck |
| FD | Freeze-Dried (food) |
| FD | Full Disclosure |
| FD | Folk Dance |
| FD | Finite Difference |
| FD | Flying Dutchman |
| FD | Flight Director |
| FD | Full Duplex |
| FD | Full Day |
| FD | Fill Device |
| FD | Family Dollar (store chain) |
| FD | Field Data |
| FD | Family Day |
| FD | Final Destination (gaming clan; movie) |
| FD | Full Dose (medicine) |
| FD | Funeral Director |
| FD | Failure Definition |
| FD | Fiduciary Duty |
| FD | Fjord |
| FD | Functional Description |
| FD | Federal District |
| FD | Family Doctor |
| FD | Fair Disclosure (Securities and Exchange Commission) |
| FD | Final Determination |
| FD | Flight Day |
| FD | Ferredoxin |
| FD | Float Double |
| FD | Full Deployment |
| FD | Free Discharge (shipping industry) |
| FD | Final Design |
| FD | Farad (electronics) |
| FD | Forsvarsdepartementet (Norwegian: Ministry of Defence) |
| FD | Flight Data |
| FD | Fault Detection |
| FD | Familial Dysautonomia |
| FD | Forest Department |
| FD | Flight Dynamics |
| FD | Functional Dependency |
| FD | First Down |
| FD | Focal Distance |
| FD | Forced Draft (fan in furnaces) |
| FD | Force Development |
| FD | Feign Death (Everquest) |
| FD | Fatal Dose |
| FD | Winds Aloft forecast |
| FD | Fluor Daniel (company) |
| FD | Full Definition |
| FD | Framework Document |
| FD | Fourth Dimension (band) |
| FD | Framework Decision (European Union council) |
| FD | Floor Drain (construction plans; plumbing) |
| FD | Flyball Dog (canine performance title) |
| FD | Fire Damper (HVAC systems) |
| FD | Feasible Distance |
| FD | Frequency Divider |
| FD | Function Designator |
| FD | Forceps Delivery |
| FD | Functional Decomposition |
| FD | Fire Direction |
| FD | First Deployment |
| FD | Fighter Direction (US Navy) |
| FD | Fitness for Duty (attendance code) |
| FD | Foreign Disclosure |
| FD | Fidei Defensor |
| FD | Front Democratique (French: Democratic Front) |
| FD | Formula Dream (racing series; Japan) |
| FD | Fourier Descriptor |
| FD | Foundation Data |
| FD | Federal Document |
| FD | Food Desert (sociology) |
| FD | France-Diplomatie (French: France-Diplomacy) |
| FD | Force Démocrate (French political party) |
| FD | Fiber Drum (environmental waste) |
| FD | Falsified Data |
| FD | Fatal Death |
| FD | Fuel Drain |
| FD | Frequency Density |
| FD | Final Drawings |
| FD | Fade Duration |
| FD | Full Donor (biology) |
| FD | Fixed Disc |
| FD | Federation of Democrats |
| FD | Fade Depth |
| FD | Fox Die (gaming, Metal Gear Solid) |
| FD | Final Deposit |
| FD | Forward Detector |
| FD | Forecast Winds and Temperatures Aloft |
| FD | Focus-Defocus |
| FD | Function Director |
| FD | Feeder Data |
| FD | Fighter Division |
| FD | Forward Detachment |
| FD | Failure Density |
| FD | Family of Documents |
| FD | Field Directive |
| FD | Factual Discrepancy (job candidate resume) |
| FD | Finance Detachment |
| FD | Forbidden Dialect (band) |
| FD | Flaming Datum |
| FD | Flight Definition Laboratory (US NASA) |
| FD | Farmacia de Descuento (Guatemalan drug store) |