mouth

UK: maʊθ | US: maʊθ

Definition
  1. n. the opening in the face used for speaking, eating, and breathing

  2. n. the opening or entrance of a container, cave, or river

  3. vt. to form words silently or exaggeratedly with the lips

Structure
mouth <opening, from Old English *mūþ*>
Etymology

The word "mouth" traces back to Old English mūþ, meaning "opening" or "entrance." It shares roots with other Germanic languages (e.g., German Mund, Dutch mond), all deriving from Proto-Germanic munþaz. This term likely originated from the Proto-Indo-European root men-, meaning "to project" or "stand out," reflecting the mouth's prominent role in the face. Over time, its meaning expanded metaphorically to describe openings of objects (e.g., "mouth of a bottle").

Examples
  1. She covered her mouth to hide a laugh.

  2. The river mouth widens as it meets the sea.

  3. He mouthed the words silently during the speech.

  4. The jar’s mouth was too narrow for the spoon.

  5. Babies often explore objects by putting them in their mouths.