Literally means "in a dream" (夢 = dream, 中 = inside).
USAGE PATTERNS:
- 〜に夢中になる (to become absorbed in ~)
- 〜に夢中だ (to be crazy about ~)
- 夢中で〜する (to do ~ frantically/absently)
COMMON COLLOCATIONS:
- ゲームに夢中 (absorbed in games)
- 仕事に夢中 (absorbed in work)
- 恋に夢中 (crazy in love)
NUANCE:
夢中 can imply being so focused that one loses awareness of surroundings or time, similar to being in a trance or dreamlike state.