stud

A male animal, especially a stud horse (stallion), kept for breeding.

A female animal, especially a studmare (broodmare), kept for breeding.

A group of such animals, also of locomotives.

He had the finest stud in England, and his delight was to win plates from Tories.

In freight working a considerable stud of ex-N.E.R. 3-cylinder 4-6-0s of Class "B16" is used, some of which include the Thompson modifications to the front end.

An animal (usually livestock) that has been registered and is retained for breeding.

at stud

A place, such as a ranch, where such animals are kept.

In the studs of persons of quality in Ireland, where care is taken, […]we see horses bred of excellent shape, vigour, and size.

A small object that protrudes from something; an ornamental knob.

a collar with studs

A belt of straw and ivy buds, / With coral clasps and amber studs.

A style of earring where the decorative element is mounted on a straight post.

She's wearing studs in her ears.

A vertical post, especially one of the small uprights in the framing for lath and plaster partitions, and furring, and upon which the laths are nailed.

A cleat on a shoe.

A stem; a trunk.

Seest not this same hawthorn stud?

To set with studs; to furnish with studs.

To decorate as a stud does.

The fruit [of Loranthus vestitus] is yellowish and fleshy, and is almost sessile on the stem, which it thickly studs.

To be scattered over the surface of (something) at intervals.

[S]eemingly countless young hot stars stud the entire huge central region[.]

To set (something) over a surface at intervals.

Stud the cake all over with chocolate chips, pointed ends in.

Stud the onion with cloves and add to the pan.