n a series of mental images and emotions occurring during sleep
n imaginative thoughts indulged in while awake
n a cherished desire
n a fantastic but vain hope (from fantasies induced by the opium pipe)
n a state of mind characterized by abstraction and release from reality
n someone or something wonderful
v have a daydream; indulge in a fantasy
v experience while sleeping
n. 梦想, 美梦（dream的复数形式）