Denshi Jisho — Online Japanese dictionary

海鳴り うみなり rumbling of the sea
Noun 
海の日 うみのひ Marine Day (national holiday; 3rd Monday of July)
Noun 
海百合 うみゆり sea lily; crinoid
Noun, Usually written using kana alone 
海ワニ うみワニ saltwater crocodile (Crocodylus porosus); estuarine crocodile
Noun, Obscure term, Usually written using kana alone 
海老蟹 えびがに crayfish (esp. red swamp crayfish, Procambarus clarkii)
Noun, Usually written using kana alone, Colloquialism 
海老腰 えびごし stooped over
Noun 
海老茶 えびちゃ maroon; reddish-brown
Noun 
海パン かいパン trunks; shorts (e.g. seaside use)
Noun 
海鼠腸 このわた salted entrails of a sea cucumber; salted entrails of a trepang
Noun 
海苔巻 のりまき vinegared rice rolled in nori (laver)
Noun, Food term 
海松貝 みるがい Tresus keenae (species of trough shell)
Noun, Usually written using kana alone 
海松食 みるくい Tresus keenae (species of trough shell)
Noun, Usually written using kana alone 
海老責め えびぜめ Japanese bondage torture (bound victim sits cross-legged with their arms tied behind them, and the rope is tightened until their ankles touch their neck)
Noun 
海老チリ えびチリ stir-fried shrimp in chili sauce
Noun, Usually written using kana alone, Abbreviation 
海苔巻き のりまき vinegared rice rolled in nori (laver)
Noun, Food term 
海峡 かいきょう channel (e.g. between two land masses); strait
Common word, Noun 
海上 かいじょう (by, at, on) sea; maritime; marine
Common word, No-adjective 
海中 かいちゅう in the sea
Common word, Noun, No-adjective 
海流 かいりゅう ocean current
Common word, Noun 
海鰻 うみうなぎ eel-like sea creature (i.e. saltwater eels, sea snakes, etc.)
Noun 
海烏 うみがらす common murre; common guillemot (Uria aalge)
Noun, Usually written using kana alone 
海鴉 うみがらす common murre; common guillemot (Uria aalge)
Noun, Usually written using kana alone 
海蠍 うみさそり eurypterid
Noun, Usually written using kana alone 
海雀 うみすずめ 1: (Usually written using kana alone) murrelet (esp. the ancient murrelet, Synthliboramphus antiquus);
2: roundbelly cowfish (Lactoria diaphana)
Noun 
海狸 うみだぬき beaver
Noun 
海燕 うみつばめ storm petrel (any bird of family Hydrobatidae)
Noun, Usually written using kana alone 

Found 389 words. Page one, two, three, four, five, six, seven, eight, nine, 10, 11, 12, 13, 14, 15

You can also

Look up kanji details for 海.

Try a Yahoo Jisho search for 海 .
Try a Goo Jisho search for 海 .
Try a Google search for 海 .