Rattle is a term that can refer to a variety of different things. It can refer to a NOISE, a BABBLE, an embarrassment, bewilderment, confusion, discomfiture, disconcertment, distraction, heckling, flustering, jarring, fazing, raling, clacking, maracas, unhinging, and unnerving. NOISE is a sound that is usually loud and unpleasant, and BABBLE is a rapid and confused speech. Embarrassment is a feeling of shame or humiliation, bewilderment is a state of confusion, and CONFOUND is to confuse or perplex. DISCOMFIT is to make uneasy or embarrassed, DISCONCERT is to disturb the composure of, and DISTRACT is to draw the attention away from something. HECKLE is to interrupt a speaker with derisive comments, FLUSTER is to make someone confused or agitated, JAR is to cause a sudden shock or surprise, and FAZE is to DISCONCERT or daunt. Rale is a rattling sound heard in the lungs of a person with a respiratory illness, CLACK is a sharp, abrupt sound, maraca is a percussion instrument, UNHINGE is to cause to become emotionally unstable, and UNNERVE is to make someone feel anxious or afraid.