Definitions:

1. A type of headwear designed to cover and protect the ears, typically from cold weather or loud noise. NOUN
   • She wore earmuffs to keep warm during the winter walk.
2. Clothing accessories consisting of a thermoplastic or metal head-band that fits over the top or back of the head, and a cushion or cup at each end to cover the ears, for hearing protection or warmth. NOUN
   • Workers are required to wear earmuffs for hearing protection at the construction site.

Synonyms:

• ear covers
• ear guards
• ear protectors
• earflaps