当用: current use / 登用: one's position, one's job assignment / 盗用: unauthorized use, plagiarism / 東洋: the Orient, the East

盗用: to use without permission, to plagiarize / 登用: to post (someone) to an office or station

(Hachijō) father

(military, of the Japan Maritime Self-Defense Force) a junior officer

(military, of the Japan Air Self-Defense Force) a junior officer

(military) captain (Japanese Air Self-Defense Forces, Japanese Ground Self Defense Forces) / (military) lieutenant (senior grade) (Japanese Maritime Self-Defense Force)

tortoise

(military, of the Japan Ground Self-Defense Force) a non-commissioned officer

陸軍: (military) army

大陸棚: continental shelf