To thrust into water, or into any substance that is penetrable; to immerse; to cause to penetrate or enter quickly and forcibly; to thrust; as, to plunge the body into water; to plunge a dagger into the breast. Also used figuratively; as, to plunge a nation into war.
To thrust or cast one's self into water or other fluid; to submerge one's self; to dive, or to rush in; as, he plunged into the river. Also used figuratively; as, to plunge into debt.
The act of thrusting into or submerging; a dive, leap, rush, or pitch into, or as into, water; as, to take the water with a plunge.
Hence, a desperate hazard or act; a state of being submerged or overwhelmed with difficulties.
thrust or throw into; "Immerse yourself in hot water"
cause to be immersed; "The professor plunged his students into the study of the Italian text"
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"
engross (oneself) fully; "He immersed himself into his studies"
a large group volunteer experience designed to provide a fun, easy way for individuals, families, and small groups to "dive into" service
descends steeply, thrust downward as a fold whose axis is not horizontal but at an angle to the horizontal
A "plunge" (or "dive") is a type of play in American Football in which the ball carrier (usually a running back or a fullback) attempts to rush through one of the gaps immediately to the left or right of center, denoted as gaps 1 and 0 respectively. It may be run with or without a lead blocker, though when run with a lead blocker it may be called a "lead dive".