plunges

To thrust into liquid, or into any penetrable substance; to immerse.

“to plunge the body into water”

To cast, stab or throw into some thing, state, condition or action.

“to plunge a dagger into the breast;   to plunge a nation into war”

To baptize by immersion.

To dive, leap or rush (into water or some liquid); to submerge oneself.

“he plunged into the river”

To fall or rush headlong into some thing, action, state or condition.

“to plunge into debt;   to plunge into controversy”

To pitch or throw oneself headlong or violently forward, as a horse does.

To bet heavily and recklessly; to risk large sums in gambling.

To entangle or embarrass (mostly used in past participle).

To overwhelm, overpower.