Noah Webster's New International Dictionary of the English Language

1. (v. i.) To make a quick succession of sharp, inharmonious noises, as by the collision of hard and not very sonorous bodies shaken together; to clatter.

2. (v. i.) To drive or ride briskly, so as to make a clattering; as, we rattled along for a couple of miles.

3. (v. i.) To make a clatter with the voice; to talk rapidly and idly; to clatter; -- with on or away; as, she rattled on for an hour.

4. (v. t.) To cause to make a rattling or clattering sound; as, to rattle a chain.

5. (v. t.) To assail, annoy, or stun with a rattling noise.

6. (v. t.) Hence, to disconcert; to confuse; as, to rattle one's judgment; to rattle a player in a game.

7. (v. t.) To scold; to rail at.

8. (n.) A rapid succession of sharp, clattering sounds; as, the rattle of a drum.

9. (n.) Noisy, rapid talk.

10. (n.) An instrument with which a rattling sound is made; especially, a child's toy that rattles when shaken.

11. (n.) A noisy, senseless talker; a jabberer.

12. (n.) A scolding; a sharp rebuke.

13. (n.) Any organ of an animal having a structure adapted to produce a rattling sound.

14. (n.) The noise in the throat produced by the air in passing through mucus which the lungs are unable to expel; -- chiefly observable at the approach of death, when it is called the death rattle. See R/le.