Definitions
1.verbTo thrust into liquid, or into any penetrable substance; to immerse."to plunge the body into water"
2.verbTo cast, stab or throw into some thing, state, condition or action."to plunge a dagger into the breast; to plunge a nation into war"
3.verbTo baptize by immersion.
4.verbTo dive, leap or rush (into water or some liquid); to submerge oneself."he plunged into the river"
5.verbTo fall or rush headlong into some thing, action, state or condition."to plunge into debt; to plunge into controversy"
6.verbTo pitch or throw oneself headlong or violently forward, as a horse does.
7.verbTo bet heavily and recklessly; to risk large sums in gambling.
8.verbTo entangle or embarrass (mostly used in past participle).
9.verbTo overwhelm, overpower.