immerse, plunge -- (thrust or throw into; "Immerse yourself in hot water")
dive, plunge, plunk -- (drop steeply; "the stock market plunged")
plunge -- (dash violently or with great speed or impetuosity; "She plunged at it eagerly")
plunge, launch -- (begin with vigor; "He launched into a long diatribe"; "She plunged into a dangerous adventure")
plunge, immerse -- (cause to be immersed; "The professor plunged his students into the study of the Italian text")
plunge, dump -- (fall abruptly; "It plunged to the bottom of the well")
dunk, dip, souse, plunge, douse -- (immerse briefly into a liquid so as to wet, coat, or saturate; "dip the garment into the cleaning solution"; "dip the brush into the paint")