adjective, -er, -est, adverb, noun | 1. | moving or capable of moving with great speed or velocity; fleet; rapid: a swift ship. |
| 2. | coming, happening, or performed quickly or without delay: a swift decision. |
| 3. | quick or prompt to act or respond: swift to jump to conclusions. |
| 4. | Slang. quick to perceive or understand; smart; clever: You can't cheat him, he's too swift. |
| 5. | swiftly. |
| 6. | any of numerous long-winged, swallowlike birds of the family Apodidae, related to the hummingbirds and noted for their rapid flight. |
| 7. | tree swift. |
| 8. | spiny lizard. |
| 9. | Also called swift moth, ghost moth. any of several brown or gray moths, the males of which are usually white, of the family Hepialidae, noted for rapid flight. |
| 10. | an adjustable device upon which a hank of yarn is placed in order to wind off skeins or balls. |
| 11. | the main cylinder on a machine for carding flax. |