What is the meaning of Chaplet?

A garland or circlet for the head.

A headdress in the form of a wreath made of leaves, flowers or twigs woven into a ring.

A string (of beads), especially when making up five decades of the rosary.

A set of repetitive prayers, other than the Rosary, typically prayed with a string of beads.

The Chaplet of Divine Mercy, the most well-known chaplet in the Catholic Church.

A molding in the form of a string of beads; a bead molding.

A bent piece of sheet iron, or a pin with thin plates on its ends, for holding a core in place in the mould.

A metal support for a cylindrical pipe.

Alternative form of chapelet

A small chapel or shrine.

Source: wiktionary.org