stud

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

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

(also by extension) A group of such animals.

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

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

A sexually attractive male; also a lover in great demand.

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

“a collar with studs”

(jewelry) A small round earring.

“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 stem; a trunk.

A type of poker where an individual cannot throw cards away and some of her cards are exposed (also stud poker).

A short rod or pin, fixed in and projecting from something, and sometimes forming a journal.

A stud bolt.

An iron brace across the shorter diameter of the link of a chain cable.

To set with studs; to furnish with studs.

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

To set (something) over a surface at intervals.

A person who studies or learns about a particular subject.

“He is a student of life.”

A person who is formally enrolled at a school, a college or university, or another educational institution.