An earplug is a small device worn in the ear to protect it from loud noises, water, or foreign objects. Made from materials like foam, silicone, or wax, earplugs help reduce noise levels, which is useful in loud environments like concerts or construction sites. They are also used by swimmers to prevent water from entering the ear or by people who need quiet for better sleep. Earplugs come in various sizes and shapes to fit the ear comfortably, and they can be disposable or reusable depending on the type.

英語での「earplug」の定義と意味

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