plunge

(noun) a brief swim in water. Synonyms: dip.

(noun) a steep and rapid fall.

(verb) thrust or throw into. Synonyms: immerse. Example: "Immerse yourself in hot water."

(verb) drop steeply. Synonyms: dive, plunk. Example: "The stock market plunged."

(verb) dash violently or with great speed or impetuosity. Example: "She plunged at it eagerly."

(verb) begin with vigor. Synonyms: launch. Examples: "He launched into a long diatribe." "She plunged into a dangerous adventure."

(verb) cause to be immersed. Synonyms: immerse. Example: "The professor plunged his students into the study of the italian text."

(verb) fall abruptly. Synonyms: dump. Example: "It plunged to the bottom of the well."

(verb) immerse briefly into a liquid so as to wet, coat, or saturate. Synonyms: dunk, dip, souse, douse. Examples: "Dip the garment into the cleaning solution." "Dip the brush into the paint."

(verb) devote (oneself) fully to. Synonyms: steep, immerse, engulf, engross, absorb, soak up. Example: "He immersed himself into his studies."