main sea, ocean

economics; the study of economics / economy

management, control; stewardship; administration

to control, to manage, to administer

use, utilize / exploit, take advantage of

a target, a mark, a bullseye / an objective, an object (of doing something)

as far as ... is concerned; in terms of ...

letter challenging someone to a duel

Short for 日本国 (Nihon-koku): Japan (a country and archipelago in East Asia) / a surname

Japan