mouthpiece

Everyday

1. The part of a musical instrument, phone or other device that you put to or near your mouth. tree →
2. A soft guard worn in the mouth to protect the teeth in sports (also «mouthguard»). tree →
3. A person who speaks for someone else. tree →

In the lessons

In music lessons: a recorder, trumpet, clarinet or flute has a mouthpiece that you blow into; clean it to keep germs away. In sport and safety: in rugby, boxing and hockey players wear a mouthpiece or mouthguard. In news: a newspaper can be «the mouthpiece» of a party.

Examples

• Blow gently into the mouthpiece of the recorder. tree →
• Clean the mouthpiece of your trumpet after practice. tree →
• Rugby players wear a mouthpiece to protect their teeth. tree →
• Speak into the mouthpiece of the old telephone. tree →
• The snorkel has a rubber mouthpiece. tree →
• Don't share your mouthpiece with others. tree →
• They have requested me, Madam, to be their mouthpiece." tree →

Note

One word: mouthpiece. Countable. For sports, «mouthguard» is the more common word. Sharing mouthpieces can spread germs.