black-tailed gull (Larus crassirostris)
sea slug (various orthogastropod species, esp. of order Nudibranchia); nudibranch
sea snake; worm eel (Ophichthidae spp.); snake eel
Hydra (constellation); the Sea Serpent
ocean; large sea; fabric pattern
sea of blood; pool of blood
beach; seashore; seaside; coast
beach hut; beachside clubhouse
umibōzu; sea yōkai, resembling a huge bald-headed black figure; sea monster; green turtle
seafood; products of the sea; marine products; fruits of the sea
sea grapes (Caulerpa lentillifera)
Japanese cormorant (Phalacrocorax capillatus); Temminck's cormorant
inland sea; inlet; gulf; (arch.) lake
to cross the ocean (i.e. to go to or come from overseas)
seaside; seashore; coast; coastland
sea of fire; sea of flames; blazing inferno
marine plant; seagrass; seaweed
seafood; products of the sea; marine products; fruits of the sea
cunning and experienced in the ways of the world; crafty and worldly-wise; sly old (fox)
sea sand; ocean sand; beach sand
oceanic noise; rumbling of the sea; mistpouffer
sea and mountains; deep (indebtedness, love, etc.); immense
Mare Nubium (lunar mare); Sea of Clouds
Marine Day (national holiday; 3rd Monday of July)
Mare Tranquillitatis (lunar mare); Sea of Tranquility; Sea of Tranquillity
storm petrel (any bird of family Hydrobatidae)
sea firefly (Vargula hilgendorfii); seed shrimp
sea grapes (Caulerpa lentillifera)
The Sea of Fertility (tetralogy by Mishima)
large number of words; (lit.) sea of words
saltwater crocodile (Crocodylus porosus); estuarine crocodile
saltwater crocodile (Crocodylus porosus); estuarine crocodile
Hydra (constellation); the Sea Serpent
The Old Man and the Sea (1952 novella by Ernest Hemingway)
murrelet (esp. the ancient murrelet, Synthliboramphus antiquus); roundbelly cowfish (Lactoria diaphana)
neither fish nor fowl; hard to predict; up in the air; unclear
whelk egg case; egg capsule of a gastropod
egg cowrie (Ovula ovum); shuttle shell
marine iguana (Amblyrhynchus cristatus)
sea chub (Ditrema temminckii temminckii)
sea pen (any coelenterate of the family Pennatulidae or related families); sea feather
Chloeia flava (species of bristle worm)
short dragonfish (Eurypegasus draconis)
pink sea milkwort (Glaux maritima var. obtusifolia)
feather star (Comatulida spp.); comatulid; Comanthus japonica (species of feather star)
red-breasted merganser (Mergus serrator)
eel-like sea creature (i.e. saltwater eels, sea snakes, etc.)
rosy goatfish (Parupeneus chrysopleuron); yellow-striped goatfish
sea lamprey (Petromyzon marinus)
Barnea dilatata (species of piddock)
parakeet auklet (Aethia psittacula)
Mare Fecunditatis (lunar mare); Sea of Fertility
a narrow-minded person cannot understand the ways of the world; (lit.) a frog in the well cannot understand the ocean even if it is explained to it
protected undeveloped coastline near populated areas; section of ocean that coexists with a nearby populated area