Dictionary/水星すいせいSuisei水星 (Suisei) is a Japanese noun meaning “Mercury (planet)”.MeaningsnounMercury (planet)Kanji in 水星水water星starRelated words水water (esp. cool or cold)星star (usu. excluding the Sun)水口spout水田(water-filled) paddy field水着bathing suit惑星planet水族館aquarium (building)香水perfume西瓜watermelon (Citrullus lanatus)水曜日Wednesday水分water水母jellyfish