earmuff

Word parts

ear + muff

Noun

Singular earmuff

Plural earmuffs

Woman wearing cold-weather thermal earmuffs. (sense 1)

A pair of earmuffs. (sense 2)

1. (countable) A earmuff is a garment worn over the ears to keep it warm.
2. (countable) A earmuff is a protective equipment that is worn over the ears to protect it from loud sounds.