What is another word for earplug?
Pronunciation: [ˈi͡əplʌɡ] (IPA) 
An earplug is a small device that is inserted into the ear canal to block out unwanted and loud sounds from the surroundings. There are many synonyms for this useful tool, such as ear defender, ear muff, sound plug, ear bud, ear shield, noise suppressor, and hearing protector. Each of these words carries the same meaning as earplug and can be used interchangeably. Earplugs are available in various sizes, shapes, and materials, such as foam, wax, silicone, and plastic. They are commonly used by people who work in noisy environments, musicians, and travelers who need to block out noise when sleeping on planes or trains. Regardless of the synonym used, earplugs continue to be an essential tool for noise reduction and hearing protection.
