世上 is read as せじょう (sejou) and means the world.
せじょう
sejou
せかいりくじょう
World Championships in Athletics
せだい
generation
せかい
realm governed by one Buddha
よのなか
society
せけん
world
せわ
sewamono (Edo-period drama about contemporary life)
よ
the times
せわにん
sponsor
せかいいち
best in the world
せかいぎんこう
World Bank
せぎん
せわもの