Yaw
Part of speech: verb
Definition: To turn about the vertical axis while maintaining course. To swerve off course to port or starboard. To steer badly, zigzagging back and forth across the intended course of a boat; to go out of the line of course.
Part of speech: noun
Definition: The rotation of an aircraft, ship, or missile about its vertical axis so as to cause the longitudinal axis of the aircraft, ship, or missile to deviate from the flight line or heading in its horizontal plane. The angle between the longitudinal axis of a projectile at any moment and the tangent to the trajectory in the corresponding point of flight of the projectile. An act of yawing. A vessel's motion rotating about the vertical axis, so the bow yaws from side to side; a characteristic of unsteadiness. The extent of yawing, the rotation angle about the vertical axis
Yawn
Part of speech: noun
Definition: The action of yawning; opening the mouth widely and taking a long, rather deep breath, often because one is tired.
Part of speech: verb
Definition: To open the mouth widely and take a long, rather deep breath, often because one is tired and sometimes accompanied by pandiculation.To present an opening that appears able to swallow one up, literally or metaphorically:
Example sentence: I found it interesting that as people become more technically oriented all over the world, at the same time people are becoming increasingly spiritual. The success of the Da Vinci code - even though it was a great yawn - also showed people's interest in religion.