Meaning of the word "Be preoccupied with" in English

What does "Be preoccupied with" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

Be preoccupied with

US /biː priːˈɒk.jə.paɪd wɪθ/
UK /biː priːˈɒk.jə.paɪd wɪð/

Idiom

to be thinking about something a lot or too much, so that you do not pay attention to other things

Example:
He was so preoccupied with his new project that he forgot his anniversary.
Don't be preoccupied with what others think of you.