Lock.
Synonyms:
| bar, | catch, | fastening, | hook, |
| bolt, | clasp, | hasp, | latch. |
A bar is a piece of wood or metal, usually of considerable size, by which an opening is obstructed, a door held fast, etc. A bar may be movable or permanent; a bolt is a movable rod or pin of metal, sliding in a socket and adapted for securing a door or window. A lock is an arrangement by which an enclosed bolt is shot forward or backward by a key, or other device; the bolt is the essential part of the lock. A latch or catch is an accessible fastening designed to be easily movable, and simply to secure against accidental opening of the door, cover, etc. A hasp is a metallic strap that fits over a staple, calculated to be secured by a padlock; a simple hook that fits into a staple is also called a hasp. A clasp is a fastening that can be sprung into place, to draw and hold the parts of some enclosing object firmly together, as the clasp of a book.