- 悪夢 — nightmare
- 夢中 — absorption / be engrossed
- 夢想 — fantasy / daydream
- 夢見 — dreaming / to see a dream
- 夢幻 — dreamlike / illusion
The top of 夢 suggests a sleeper under a roof, while the lower part includes 夕 (evening), evoking night-time visions. The character extends to aspirations and the ephemeral quality of illusions.
こどもの頃の夢は 宇宙飛行士になることでした。
My childhood dream was to become an astronaut.
昨夜は 変な 夢を見ました。
I had a strange dream last night.