Definitions of cough:

  • noun:   the act of exhaling air suddenly with a noise
  • noun:   sudden expulsion of air from the lungs that clears the air passages; a common symptom of upper respiratory infection or bronchitis or pneumonia or tuberculosis
  • verb:   exhale abruptly, as when one has a chest cold or congestion
    Example: "The smoker coughs all day"
  • name:  A surname (very rare: popularity rank in the U.S.: #64860)