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Lilnonames · F
Definition of in one's own world
: spending so much time thinking about something that one does not notice what is happening I tried to talk to him, but he was in his own (little) world and didn't seem to hear what I was saying
: spending so much time thinking about something that one does not notice what is happening I tried to talk to him, but he was in his own (little) world and didn't seem to hear what I was saying