noun
virtual world
Refers to a computer-generated, immersive environment, often in the context of VR, online games, or the metaverse.
彼は仮想世界で新しい友達を作った。
He made new friends in the virtual world.
Compound of 仮想 (kasō, 'virtual, imaginary') and 世界 (sekai, 'world'). The term is a straightforward modern coinage reflecting the concept of a simulated environment.