in a world of your own

US /ɪn ə wɜrld əv jʊər oʊn/
UK /ɪn ə wɜrld əv jʊər oʊn/
"in a world of your own" picture
1.

in zijn/haar eigen wereld, in gedachten verzonken

living in your own thoughts and imagination, often unaware of what is happening around you

:
She's often in a world of her own, dreaming about her next novel.
Ze is vaak in haar eigen wereld, dromend over haar volgende roman.
He was so deep in a world of his own that he didn't hear me call his name.
Hij was zo diep in zijn eigen wereld dat hij me niet hoorde roepen.