/ stʌd; NAmE / noun
1.
[ C ] a small piece of jewellery with a part that is pushed through a hole in your ear, nose, etc. :
diamond studs
2.
[ C ] a small round piece of metal that is attached to the surface of sth, especially for decoration :
a leather jacket with studs on the back
3.
[ C , usually pl. ] ( BrE ) one of several small metal or plastic objects that are fixed to the bottom part of a football boot or running shoe
—picture at football boot
—compare cleat
4.
[ C ] a small metal object used in the past for fastening a collar onto a shirt
—see also press stud
5.
[ C , U ] an animal, especially a horse, that is kept for breeding; a place where animals, especially horses, are kept for breeding :
a stud farm
The horse was retired from racing and put out to stud (= kept for breeding) .
6.
[ C ] ( informal ) a man who has many sexual partners and who is thought to be sexually attractive
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WORD ORIGIN
senses 1 to 4 Old English studu , stuthu post, upright prop ; related to German stützen to prop. The sense ornamental metal knob arose in late Middle English .
senses 5 to 6 Old English stōd , of Germanic origin; related to German Stute mare, also to stand .