Clipping of メリークリスマス.

Alternate reading for 六道 (ろくどう, rokudō). / 地獄道 (じごくどう, jigokudō): hell / 餓鬼道 (がきどう, gakidō): life in starvation (one of the Buddhist hells) / 畜生道 (ちくしょうどう, chikushōdō): life as a beast

tortoise

Short for 陸前国 (Rikuzen-no-kuni): Rikuzen Province, one of the provinces of Japan separated from the older 陸奥 (Mutsu) Province in the early Meiji period; today part of Miyagi and Iwate prefectures

Alternative spelling of ちょうこくぐ座 (“Caelum”)

Alternative spelling of ちょうこくしつ座 (“Sculptor”)

暗黒大陸: Dark Continent

(military, historical) 大日本帝国陸軍 / (military) 陸上自衛隊

Antarctica

大陸斜面: continental slope