世界【せかい】
the world, society, the universe, sphere, circle, world, world-renowned, world-famous, realm governed by one Buddha, space
世話【せわ】
care, looking after, help, assistance, aid, trouble, bother, good offices, recommendation, introduction, everyday life, everyday affairs, everyday language, sewamono (Edo-period drama about contemporary life)
世紀【せいき】
century, era, of the century (e.g. fight of the century)
世の中【よのなか】
society, the world, the times
世間【せけん】
world, society, people, the public
世界中【せかいじゅう】
around the world, throughout the world
世代【せだい】
generation, the world, the age
この世【このよ】
this world, this life, world of the living
世界一【せかいいち】
best in the world
お世話【おせわ】
help, aid, assistance
出世【しゅっせ】
success in life, getting ahead, successful career, promotion, climbing the corporate ladder, eminence
あの世【あのよ】
the other world, the next world, the world beyond, world after death
世子【せいし】
heir, successor
救世主【きゅうせいしゅ】
saviour, savior, messiah, Messiah, Jesus Christ
世界的【せかいてき】
worldwide, global, international, universal, world-famous, world-class
世論【よろん】
public opinion, popular voice, public sentiment, consensus
世帯【せたい】
household, home, family, housekeeping
全世界【ぜんせかい】
the whole world
中世【ちゅうせい】
Middle Ages (in Japan esp. the Kamakura and Muromachi periods), medieval times, mediaeval times
新世界【しんせかい】
New World (esp. the Americas, but also Australasia), new world
