yaw (Verb) — Be wide open. ex. "the deep yawing canyon"
yaw (Verb) — Deviate erratically from a set course. ex. "the yawing motion of the ship"
yaw (Verb) — Swerve off course momentarily. ex. "the ship yawed when the huge waves hit it"
yaw (Noun) — An erratic deflection from an intended course.