noun
world destiny; course of world events
Rare, somewhat literary term referring to the fate or trend of the world as a whole. Not used in everyday conversation.
世運の隆替は誰にも予測できない。
The rise and fall of world destiny cannot be predicted by anyone.
運命 is the common word for 'fate' or 'destiny' in general, while 世運 specifically refers to the destiny of the world or the course of global events.
Compound of 世 (world, generation) and 運 (fortune, fate). The exact historical derivation is uncertain; it is a Sino-Japanese word (kango) that appears in older literary contexts.