earplug

UK: ˈɪəplʌɡ | US: ˈɪrplʌɡ

Definition
  1. n. a small device inserted into the ear to block noise or water

  2. vt. to fit or protect with earplugs

Structure
ear <organ of hearing>plug <stopper>
Etymology

The word "earplug" is a straightforward compound of "ear" (Old English ēare, meaning the organ of hearing) and "plug" (Middle Dutch plugge, meaning a stopper or wedge). The term emerged in the early 20th century, reflecting the practical invention of small inserts to protect ears from noise or water. The logic is literal: a "plug" for the "ear."

Examples
  1. She wore earplugs to sleep through the noisy construction.

  2. Swimmers often use earplugs to prevent water from entering their ears.

  3. The factory workers were provided with earplugs for hearing protection.

  4. He forgot his earplugs and couldn’t focus during the concert.

  5. Earplugs are essential for reducing exposure to loud machinery.