Compounds of 海

• 海底
  (n) (1) bottom of the ocean
  (adj-f) (2) undersea
  submarine
  (P)
• 海道
  (n) sea route
  (P)
• 海豚
  (gikun) (n) (uk) dolphin (or other small toothed whales, such as porpoises, belugas, etc.)
• 海内
  (n) the whole country
• 海難
  (n) shipwreck
  (P)
• 海葱
  (n) white squill (Urginea maritima)
  sea onion
• 海猫
  (n) black-tailed gull (Larus crassirostris)
• 海馬
  (n,adj-no) (uk) eared seal (esp. the California sea lion, Zalophus californianus)
  sea lion
• 海馬
  (n) (1) sea horse
• 海馬
  (n) (1) sea horse
  (2) hippocampus
  (3) walrus
• 海馬
  (n) Steller's sea lion
• 海髪
  (n) ogo (seaweed)
• 海髪
  (n) ogo (seaweed)
• 海髪
  (n) ogo (seaweed)
• 海抜
  (n) height above sea level
  (P)
• 海鳩
  (n) (uk) pigeon guillemot (Cepphus columba)
• 海氷
  (n) sea ice
• 海豹
  (n,adj-no) (uk) true seal (animal)
  earless seal
  hair seal
• 海豹
  (n,adj-no) (uk) true seal (animal)
  earless seal
  hair seal
• 海浜
  (n) seaside
  (P)
• 海風
  (n) sea breeze
• 海風
  (n) sea breeze
• 海淵
  (n) ocean depths
• 海兵
  (n) sailor
  marine
• 海辺
  (n,adj-no) beach
  seashore
  (P)
• 海辺
  (n,adj-no) beach
  seashore
• 海膨
  (n) rise
• 海防
  (n) coastal defense
  coastal defence
• 海盆
  (n) basin
• 海霧
  (n) sea fog