1. A small device worn in or over the ear to listen to audio from a phone, radio, or other electronic device.
Usage: Usually plural or used in singular form as 'earpiece'; Common in modern technology contexts
2. The part of a telephone, hearing aid, or similar device that is held against or inserted into the ear.
Usage: Technical/device-specific usage

Examples

• She wore wireless earpieces while jogging to listen to her favorite podcast.
• The interpreter provided earpieces so the audience could hear the translation.
• He adjusted his earpieces to get better sound quality during the call.
• The security guard communicated with his team through hidden earpieces.
• Modern earpieces often include noise-cancellation technology.
• She lost one of her earpieces at the gym yesterday.