Definition

1. Noun:
   • A protective device for the ear: A small, often disposable, plug made of soft material such as foam, silicone, wax, or rubber that is inserted into the ear canal. Its primary purpose is to block or reduce the entry of sound (noise) or water.
   • A type of earphone: A listening device, similar to a headphone, that is designed to be inserted directly into the ear canal to deliver audio.

Examples of Usage

• Noun (Hearing Protection):
  • Factory workers are required to wear earplugs to prevent hearing damage from the loud machinery.
  • I always use earplugs when I swim to keep water out of my ears.
• Noun (Listening Device):
  • The new wireless earplugs are so small they are almost invisible when worn.
  • He lost one of his expensive music earplugs on the train.

Advanced Usage

• "to insert an earplug": to place an earplug into the ear canal.
  • Gently roll the foam earplug before inserting it for a proper fit.
• "noise-cancelling earplug": an earplug designed specifically to reduce or cancel out ambient noise.
  • These noise-cancelling earplugs are perfect for studying in a noisy café.

Variants and Related Words

• Earmuff (n): A pair of soft coverings connected by a band, worn over the ears to protect them from cold or noise. (Different form of hearing protection worn the ears).
• Ear defender (n): Another term for a device that protects hearing, often referring to larger, over-the-ear equipment.

Synonyms

• Hearing protector: A general term for any device that protects the ears from loud noise.
• Auditory plug: A more technical term for a device that occludes the ear canal.

Related Phrases

• "a pair of earplugs": Earplugs are typically used in pairs, one for each ear.
  • I need to buy a new pair of earplugs for my flight.
• "disposable earplug": An earplug intended to be used once or a few times and then thrown away.
  • The concert provided free disposable earplugs at the entrance.

Related Idioms

(Note: There are no common idioms that specifically feature the word "earplug." It is a practical, technical noun not typically used in figurative language.)

Noun

1. a plug of cotton, wax, or rubber that is fitted into the ear canal for protection against the entry of water or loud noise
2. an earphone that is inserted into the ear canal