Definitions
1.verbTo shift a fore-and-aft sail from one side of a sailing vessel to the other, while sailing before the wind.
2.verbOf a fore-and-aft sail or its boom: to shift, often forcefully and suddenly, from one side of a sailing vessel to the other.
3.verbGenerally of a small sailing vessel: to change tack with the wind crossing behind the vessel.
4.verb(by extension) Often as gybe at: to balk, hesitate, or vacillate when faced with a course of action, plan, or proposal.
5.verbAlternative spelling of jibe