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3. be in another world

be in another world

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be in another world

To be lost in thoughts or daydreams and thus oblivious to one's surroundings. Jill must have been in another world when I asked her to turn off the oven because the bread is burned now. I have no idea what the professor said during today's lecture because I was in another world the whole time.

See also: another, world

be in another world

  also be in a world of your own

to not notice what is happening around you, usually because you are thinking about something else She just sat and stared out of the window most of the time - she seemed to be in another world. I don't think you even heard me, did you? You're in a world of your own.

See also: another, world