V. plunge, dip, souse, duck; dive, plump; take a plunge, take a header;
make a plunge; bathe &c (water) 337.
submerge, submerse; immerse; douse, sink, engulf, send to the
bottom.
get out of one's depth; go to the bottom, go down like a stone,
drop like a lead balloon; founder, welter, wallow.