to be miles away
01
to have no idea what is happening around one, particularly because one is preoccupied with something else
![to [be] miles away definition and meaning](https://cdn.langeek.co/photo/42232/original/?type=jpeg "to [be] miles away definition and meaning")
Collocation
例
During the boring lecture, I was miles away, thinking about my upcoming vacation.
to have no idea what is happening around one, particularly because one is preoccupied with something else
