RATTLE

Definition

1. verb make short successive sounds.
2. verb shake and cause to make a rattling noise.
3. noun a rapid series of short loud sounds (as might be heard with a stethoscope in some types of respiratory disorders). — synonyms: rattling, rale
4. noun a baby's toy that makes percussive noises when shaken.
5. noun loosely connected horny sections at the end of a rattlesnake's tail.