noun
everyday world; mundane world; secular world
Refers to the ordinary, worldly realm as opposed to religious, spiritual, or idealized spheres. Often carries a slightly literary or reflective tone.
僧侶は俗世界を離れて修行に専念した。
The monk left the everyday world behind and devoted himself to ascetic practice.
彼の話はいつも俗世界の出来事ばかりだ。
His stories are always about mundane worldly matters.
浮世 refers to the transient, fleeting world of human existence, often with a Buddhist or historical flavor. 俗世界 is more neutral and simply contrasts the mundane with the sacred or ideal.
Compound of 俗 (ぞく, 'common, vulgar, worldly') and 世界 (せかい, 'world'). The exact historical derivation is uncertain, but the word follows a standard Sino-Japanese pattern for forming abstract nouns.