[General] Dream of/about

[barnej0096]

Is there any difference? Because I found an example: 'I dream.... becoming a millionaire and buying a big yacht' and the only answer is OF, so is it incorrect to say ABOUT in this case?

 

[Grumpy]

There's no real difference.

 

[MartinEnglish]

I'd say we use dream about more for actual dreaming "Last night I dreamt about being chased by a gang of purple clowns,"
and I'd use dream of for the more figurative use of fantasising "I dream of one day winning the lottery and buying a big house by the sea".

For me at least, both sentences would sound slightly odd if I swapped the preposition.