Dictionary/陸海りくかいRikukaiAlso read: りっかい陸海 (Rikukai) is a Japanese noun meaning “land and sea, army and navy”.Meaningsnounland and seanounarmy and navyKanji in 陸海陸land海seaRelated words海sea丘hill海外foreign陸land六six海豚dolphin (or other small toothed whales, incl. porpoises, belugas, etc.)海老prawn北海道Hokkaido (island, prefectural-level administrative unit)碌なsatisfactory碌に(not) well内海inland sea海軍navy