三界流転

さんがいるてん

all beings go on repeating samsara in the three realms and wandering around in the three realms

子は三界の首枷

こはさんがいのくびかせ

A child is an everlasting responsibility to parents

女は三界に家なし

おんなはさんがいにいえなし

a woman has no home of her own in this world (because in youth, she has to listen to her parents; in adulthood, to her husband; in old age, to her children); a woman has no home in (any of) the three realms

三千世界

さんぜんせかい

the whole world, the universe

第三世界

だいさんせかい

the Third World

三千大千世界

さんぜんだいせんせかい

the whole universe (of a billion worlds) that buddha enlightened

第三次世界大戦

だいさんじせかいたいせん

World War III, Third World War

界

かい

erathem (rock layer corresponding to the era in which it was deposited)

境界

きょうかい

boundary

限界

げんかい

limit, bound

世界

せかい

sphere, circle, world

磁界

じかい

magnetic field

界隈

かいわい

neighborhood, neighbourhood, vicinity

財界

ざいかい

financial world

分界

ぶんかい

demarcation

界標

かいひょう

boundary mark (on land or water)

浪界

world of naniwabushi singers

魔界

まかい

world of spirits, hell

十界

じっかい

ten spiritual realms