To engage in the sport of skydiving, To lunge or leap headfirst, To rush headlong and vanish into something, transitive verb_ rare To explore by diving; to plunge into, obsolete To plunge (a person or thing) into water; to dip; to duck, noun_ A lunge or a headlong jump, A plunge headforemost into water, the act of one who dives, literally or figuratively, Plural form of diva