the same kind; accomplice; partner
(overnight) stay; lodging
end; conclusion; last; final; once ...; the moment ... (, that's it)
secret; secrecy; mystery; secret (e.g. to success); esoteric teachings
to carry (something) under cover; to carry concealed
soul; spirit; willpower; vitality; something as important as one's own life; something invaluable
pity; sorrow; pitiable; pitiful; alack; alas
to stagnate; to settle (at the bottom); to deposit; to become sluggish; to become dull; to be delayed
bubble; foam; froth; suds; lather; head (on beer)
to surface; to come to the top; to stand out (e.g. against a background)
closely (packed, lined up, etc.); tightly; densely; (work) sufficiently
big mouth; mouth opened wide; boastful speech; tall talk; large amount; large quantity
to spring at; to leap upon; to swoop down on; to throw oneself upon (e.g. an enemy)
in an instant; instantly; in a moment; instantaneously; in the twinkling of an eye
torrent; rapid stream; violently rushing stream
to emit; to spout; to spurt; to boil over
tornado; whirlwind; waterspout; twister
to gouge; to hollow out; to greatly perturb; to cause emotional pain; to get to the bottom of things; to relentlessly bring the truth to light
school of fish; shoal of fish
water plant; aquatic plant; waterweed; hydrophyte
underwater navigation; going underground; going into hiding; travelling incognito
black; dark; blackish; suspicious; criminal; darkened and dirty; sooty
feeler; tentacle; antenna; touching (with one's hand); feeling; sensing
to spout out; to spurt out; to sprout; to bud; to burst into laughter; to blow (smoke, etc.)
to rise to the surface; to come to the front; to emerge (e.g. from obscurity); to stand out (e.g. against a dark background)
to scatter away; to blast away; to blow away (via explosion)
to settle down (and deal with something); to concentrate all one's energy (on something); to settle oneself (in a place); to settle down (somewhere); to take a solid stance; to lower one's center of gravity (centre)
to shave (wood, leather, etc.); to sharpen (e.g. pencil); to cut down (budget, expenses, staff, time, etc.); to curtail; to delete; to erase
leisurely; slow; deliberate; easygoing
village; hamlet; countryside; country; home (of one's parents, etc.); hometown
fishing; angling; change (for a purchase); clickbaiting; trolling; bait
rod; pole; neck (of a shamisen, etc.); shamisen; beam (i.e. the crossbar of a balance); single line (esp. as a flying formation for geese); penis
master; expert; Meijin (professional title); Meijin (highest title for male players in competitive karuta)
without leaving any trace
digestion (of food); digestion (of information); assimilation; consumption; absorption; (arch.) losing one's form and turning into something else
suicide by drowning; drowning oneself; entering the water; hitting the water
hammer; hopeless swimmer; person who can't swim; someone who sinks like a stone