#yaw
- To sheer — To sheer, yaw, or swerve suddenly and involuntarily from a straight course, describing a vessel, boat, or aircraft swinging around its vertical axis under the influence of waves, crosswinds, or steering gear failures.
- Sheering — The act of sheering, yawning, or swerving and its result; a sudden, involuntary deviation or oscillation of a vessel or aircraft from its straight course due to external factors or structural errors.
- Embardee — A sudden, temporary, and involuntary deviation or swerve of a vessel, boat, or aircraft from its normal course, caused by currents, waves, wind gusts, or a steering error (from French embardée). Technologically, it is the physical result of yawning or sheering.