1) Fashion accessory 2) Jewellery 3) One of a worn pair 4) Ornamental fastener 5) Type of jewellery 1) Stud 
Cufflinks are used to secure French button cuffs and are also an item of jewellery for men. In their simplest form a double, coloured silk knot with rubber band is used (nowadays typically made completely from rubber). Cufflinks can be manufactured from a variety of different materials, such as glass, stone, leather, metal, precious metal or combi...
[n] - jewelry consisting of one of a pair of linked buttons used to fasten the cuffs of a shirt
noun jewelry consisting of one of a pair of linked buttons used to fasten the cuffs of a shirt