Meaning of the word preoccupied in English

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

preoccupied

US /ˌpriːˈɑː.kjə.paɪd/
UK /ˌpriːˈɒk.jə.paɪd/

Adjective

thinking or worrying about something too much:

Example:
She's been very preoccupied recently because her mother has been very ill.