General English


  • noun a male horse kept for breeding

Cars & Driving

  • noun a threaded fastener without a head; similar to a grub screw, but with an unthreaded portion roughly in the middle; typically used for nut and stud assembly of alloy parts, e.g. to attach manifolds to alloy cylinder heads or to secure the cylinder head to the cylinder block. The stud is screwed into a threaded hole until the run-out threads in the metal of the stud jam in the first thread in the hole; studs should never reach the bottom of the hole.
  • noun a bolt projecting from a plate, like a wheel stud
  • noun a projecting pin or peg attached to the tread of a snow tyre to improve traction


  • A vertical member of appropriate size (2" x 4" to 4" x 10") (or 50 mm x 100 mm to 100 mm x 250 mm) and spacing (16" to 30") (or 400 mm to 750 mm) to support sheathing or concrete forms.
  • A framing member, usually cut to a precise length at the mill, designed to be used in framing building walls with little or no trimming before it is set in place. Studs are most often 2" x 4", but 2" x 3", 2" x 6" and other sizes are also included in the stud category. Studs may be of wood, steel, or composite material.
  • A bolt having one end firmly anchored. See also shear stud.


  • verb to insert small items such as cloves, sprigs of herbs or slivers of garlic at intervals over the surface of a food item such as an onion or a joint of meat

Real Estate

  • noun a small metal knob, rivet or nail head that protrudes slightly from a surface, especially for decorative effect
  • noun a vertical length of timber to which material such as lath or plasterboard is attached in constructing a wall


  • noun a sexually active, powerful, potent male. Only slang when applied to men as opposed to (real) animals, the term often indicates a degree of approval or admiration, even if grudgingly. In black American street parlance the word was sometimes used in the 1960s and 1970s simply to mean a ‘guy’. There seems to be no female equivalent that stresses sexual power rather than degeneracy.

Origin & History of “stud”

Stud ‘place where horses are bred’ and stud ‘nail’ (OE) are different words. The former (like stable and stall) denotes etymologically a place where animals ‘stand’, in this case for breeding purposes. It comes from a prehistoric Germanic *stōtham, a derivative of the base *sta-, *stō- ‘stand’ (source also of English stand, and of steed (OE), which originally denoted a ‘male horse used for breeding’). The use of the word for a ‘man who is highly active and proficient sexually’ dates from the end of the 19th century. The ancestry of stud ‘nail’ is not altogether clear, although it appears to be related to German stützen ‘support’. It originally meant ‘post, support’, a sense preserved in the building term stud ‘upright post to which boards are fixed’, and ‘nail’ (presumed to represent the same word) did not emerge until the 15th century.