(stud) noun
1. A short intermediate post, as in a building frame; a post to which laths are nailed; a scantling.
2. A knob, round–headed nail, or small protuberant ornament, as an ornamental button in a shirt front.
3. A crosspiece in a link, as in a chain cable.
4. A small pin such as is used in a watch.
5. Stud poker.
—v.t. stud·ded, stud·ding
1. To set thickly with small points, projections, or knobs.
2. To be scattered or strewn over: Daisies stud the meadows.
3. To support or stiffen by means of studs or upright props. [OE studu post]

(stud) noun
1. A collection of horses and mares for breeding.
2. The place where they are kept.
3. A collection of horses for riding, hunting, or racing.
4. A stallion: also studhorse.
—adjective
1. Of or pertaining to a stud.
2. Kept for breeding: a stud mare. [OE stōd]