plunge

verb

1
begin with vigor
He launched into a long diatribe
She plunged into a dangerous adventure
2
devote (oneself) fully to
He immersed himself into his studies
3
cause to be immersed
The professor plunged his students into the study of the Italian text
4
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
5
thrust or throw into
Immerse yourself in hot water
6
dash violently or with great speed or impetuosity
She plunged at it eagerly
7
drop steeply
the stock market plunged
8
fall abruptly
It plunged to the bottom of the well

Also useful for “plunge”:Unscrambler— Rearrange the letters in “plunge”