What is the meaning of yaws?

noun

• An erratic deflection from an intended course.
  • synonyms: yaw, swerve
• An infectious tropical disease resembling syphilis in its early stages; marked by red skin eruptions and ulcerating lesions.
  • synonyms: frambesia, framboesia

verb

• Be wide open.
  • usage: "the deep gaping canyon"
  • synonyms: gape, yawn, yaw
• Deviate erratically from a set course.
  • usage: "the yawing motion of the ship"
  • synonyms: yaw
• Swerve off course momentarily.
  • usage: "the ship yawed when the huge waves hit it"
  • synonyms: yaw