空想

1. Origins, structure, and basic meaning

• Structure: 空想 (くうそう) is a noun that also forms a する verb for fantasy or imagining something outside reality.
• Basic usage: It describes imagining a flying house or writing a story that blends reality and fantasy.
  • 子どもの頃は空を飛ぶ家を空想していました。 — As a child, I imagined houses that could fly.
  • 現実と空想が混ざった不思議な物語を書きました。 — I wrote a strange story blending reality and fantasy.

2. Common pitfalls and similar expressions

• Reality and fantasy
  • 空想 focuses on mentally creating something that does not exist in reality, and the second example directly contrasts it with 現実.