Synonyms for the word "pin" include fastener, needle, tack, brooch, clasp, peg, stud, buckle, snap, button, safety pin, and brad. A fastener, like a pin, holds two or more objects together. A needle and tack are specific types of pins used for sewing or holding materials in place temporarily. A brooch and clasp are decorative pins used to fasten clothing or jewelry together. Peg, stud, buckle, and snap are all types of pins used to secure garments or accessories in place. Button and safety pin are also common alternatives to the word "pin" often used in daily conversation.