To shut or fasten together with, or as with, a clasp; to shut or fasten (a clasp, or that which fastens with a clasp).
An adjustable catch, bent plate, or hook, for holding together two objects or the parts of anything, as the ends of a belt, the covers of a book, etc.
A lock or closure used to fasten a necklace, bracelet, etc. that makes it easy to put on or take off a piece of jewelry and is designed to prevent loss. Typical clasps are a Lobster Claw, Barrel Lock, Pearl Clasp, or Spring Ring. Clasps may be hidden or a featured part of an items design such as a toggle clasp, which is worn in the front, and is used on many necklaces and bracelets.