水すい軍ぐんすいぐんFreq.FrequencyTop 50,000Meanings1nounnavy; naval forceHistorical term, especially for Japanese naval forces before the 1850s. In modern contexts, 海軍 is more common.See also: 海軍戦せん国ごく時じ代だい、村むら上かみ水すい軍ぐんは瀬せ戸と内ない海かいで活かつ躍