This is the 874th most frequent Ukrainian word.
новий
"New"
The word 'новий' (new) is used here as an adjective to describe the phone, indicating it has been recently acquired or is novel to the owner.
Це мій новий телефон.
This is my new phone.
Here, 'новий' (new) describes the abstract noun 'розділ' (chapter), hinting at a fresh or different phase in the speaker's life.
Я починаю новий розділ у своєму житті.
I am starting a new chapter in my life.
In this context, 'новий' (new) modifies the noun 'магазин' (store), suggesting it is recently constructed or about to be established.