Extremely loud and piercing; describing a sound so intense it seems like it could damage your ears.
From 'ear' plus 'splitting' (breaking apart), literally suggesting the sound is so intense it could split your ear. Created as a dramatic intensifier in English to describe extreme noise.
Earsplitting sounds (over 140 decibels) can actually cause permanent hearing damage instantly—fireworks, jet engines, and gunshots at this level can rupture eardrums, making this hyperbole accidentally scientific.
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