Meanings

mirugai clam (Tresus keenae, species of gaper clam)

submarine volcano

submergent coastline

sea snail

emergent coastline

fault coast

Battle of the Philippine Sea (June 19-20, 1944)

place by the sea

seaman

overseas trip

accident at sea

Japan Coast Guard

immortal jellyfish (Turritopsis dohrnii)

Battle of Leyte Gulf (October 23-25, 1944)

Naval Battle off Malaya (December 10, 1941)

sea level rise

south coast

overseas inspection

stir-fried shrimp in chili sauce

foreign company