a boss, knob, nailhead, or other protuberance projecting from a surface or part, esp. as an ornament.

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.

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.

any of various projecting pins, lugs, or the like, on machines or other implements.

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.

an earring consisting of a small, buttonlike ornament mounted on a metal post designed to pass through a pierced ear lobe.

Horology . the piece to which the fixed end of a hairspring is attached.

to set with or as if with studs, bosses, or the like

The leather-covered door was studded with brass nails.

(of things) to be scattered over the expanse or surface of

Stars stud the sky.

to set or scatter (objects) at intervals over an expanse or surface

to stud raisins over a cake.

to furnish with or support by studs.

ornamented with rivets, nailheads, or other buttonlike, usually metallic objects

a stud belt.

noun

belle , lovely , stunner , beam , brace , buck , button , dot , peg , pillar , pin , post