This is the 372nd most frequent Croatian word.
novi
"New."
The adjective 'novi' here is used with 'grad' (city) to describe a city that is either newly-built or newly-discovered by the speaker.
Taj novi grad je prepun zanimljivosti.
That new city is full of attractions.
Here, 'novi' is used as an adjective meaning 'new', modifying the noun 'automobil' (car).
Kupio sam novi automobil.
I bought a new car.
In this sentence, 'novi' modifies 'učenik' (student) and conveys the idea of being recently introduced into the context, in this case, the school.