WJO

(redirected from Weak Jump Overcall)
AcronymDefinition
WJOWestchester Jazz Orchestra (Chappaqua, NY)
WJOWeak Jump Overcall
WJOWorld Jado Organisation (martial arts)
WJOWorld Journal of Orthodontics
WJOWindjammers Jazz Orchestra
WJOWeb Journal of Ophthalmology
WJOWaco Jazz Orchestra (est. 1989; Waco, TX)