1. A series of images, ideas, emotions, and sensations occurring involuntarily in the mind during certain stages of sleep.
2. A daydream; a reverie.
3. A state of abstraction; a trance.
4. A wild fancy or hope.
5. A condition or achievement that is longed for; an aspiration: a dream of owning their own business.
6. One that is exceptionally gratifying, excellent, or beautiful: Our new car runs like a dream.

1. To experience a dream in sleep: dreamed of meeting an old friend.
2. To daydream.
3. To have a deep aspiration: dreaming of a world at peace.
4. To regard something as feasible or practical: I wouldn't dream of trick skiing on icy slopes.

1. To experience a dream of while asleep: Did it storm last night, or did I dream it?
2. To conceive of; imagine.
3. To pass (time) idly or in reverie.

dream on Informal.

1. Used in the imperative to indicate that a statement or suggestion is improbable or unrealistic.

1. To invent; concoct: dreamed up a plan to corner the market.

[Middle English drem, from Old English drēam, joy, music, akin to Old Saxon drōm, mirth, dream.]

The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.