https://www.imtra.com/learning-center/6-ship-motions-and-how-to-mitigate-them-on-your-boat

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  • Pitch – up and down motion, rotating along the vessel’s lateral axis.
  • Roll – side-to-side tilting along the vessel’s longitudinal axis.
  • Yaw – rotation left and right around the vertical axis, affecting the vessel’s direction.
  • Sway – lateral movement, where the entire vessel moves side-to-side.
  • Surge – forward and backward motion along the vessel’s longitudinal axis.
  • Heave – vertical movement, where the entire vessel moves up and down.