,noun, verb, stud⋅ded, stud⋅ding, adjective | 1. | a boss, knob, nailhead, or other protuberance projecting from a surface or part, esp. as an ornament. |
| 2. | any of various buttonlike, usually ornamental objects, mounted on a shank that is passed through an article of clothing to fasten it: a collar stud. |
| 3. | any of a number of slender, upright members of wood, steel, etc., forming the frame of a wall or partition and covered with plasterwork, siding, etc. |
| 4. | any of various projecting pins, lugs, or the like, on machines or other implements. |
| 5. | Automotive. any of a large number of small projecting lugs embedded in an automobile tire (studded tire) to improve traction on snowy or icy roads. |
| 6. | an earring consisting of a small, buttonlike ornament mounted on a metal post designed to pass through a pierced ear lobe. |
| 7. | Horology. the piece to which the fixed end of a hairspring is attached. |
| 8. | to set with or as if with studs, bosses, or the like: The leather-covered door was studded with brass nails. |
| 9. | (of things) to be scattered over the expanse or surface of: Stars stud the sky. |
| 10. | to set or scatter (objects) at intervals over an expanse or surface: to stud raisins over a cake. |
| 11. | to furnish with or support by studs. |
| 12. | ornamented with rivets, nailheads, or other buttonlike, usually metallic objects: a stud belt. |

,| 1. | a studhorse or stallion. |
| 2. | an establishment, as a farm, in which horses are kept for breeding. |
| 3. | a number of horses, usually for racing or hunting, bred or kept by one owner. |
| 4. | a male animal, as a bull or ram, kept for breeding. |
| 5. | a herd of animals kept for breeding. |
| 6. | Slang. a man, esp. one who is notably virile and sexually active. |
| 7. | Poker. stud poker. |
| 8. | of, associated with, or pertaining to a studhorse or studhorses. |
| 9. | retained for breeding purposes. |
| 10. | at or in stud, (of a male animal) offered for the purpose of breeding. |