(historical) haijin; sea ban; ban on foreign trade

the area beyond seas / overseas, foreign countries

exchange, interchange, intermingling with members of other groups, such as other cultures / (electricity) alternating current

interaction

stern, grave, forbidding; dignified, stately / strict, unforgiving / tight, close, without gaps / harsh, tough, extreme, severe, hard to withstand (said of natural phenomena)

(rare, archaic) wondrous, miraculous, splendid, sublime / (rare, archaic) dignified, solemn, stern, noble, refined / (rare, archaic) beautiful, pretty

the way in which something is tightly packed or close together without gaps

limit, restriction

to limit, to restrict

prohibition