名詞 day-dream:

1. absentminded dreaming while awake
   同義詞：reverie, revery, daydream, daydreaming, oneirism, air castle, castle in the air, castle in Spain

動詞 day-dream:

1. have a daydream; indulge in a fantasy
   同義詞：dream, daydream, woolgather, stargaze
2. have dreamlike musings or fantasies while awake
   同義詞：daydream, moon