eardefender
nounUK /ˈɪə.dɪˌfɛn.dər/
US /ˈɪr.dɪˌfɛn.dər/
A thing you wear or use to keep loud sounds from hurting your ears.
She put on her eardefender before the fireworks started.
RELATED WORDS
OTHER MEANINGS
2. A person who protects someone else's hearing or speaks up for quiet.
The teacher was an eardefender, always reminding us to turn the music down.
3. A feature on a device that limits how loud the sound can get.
The tablet's eardefender keeps the volume safe for kids.
4. A small guard worn over the ear during sports or work.
He wore an eardefender so the wind wouldn't hurt his ear.