This is the 61st most frequent Persian word.
جدید
New
Here, 'جدید' is used as an adjective to describe the noun 'کتاب' (book), suggesting that it's not old.
این کتاب جدید است.
This book is new.
In this sentence, 'جدید' functions as an adjective qualifying 'ماشین' (car), indicating its novelty.
من یک ماشین جدید خریدم.
I bought a new car.
Here, 'جدید' is used as an attributive adjective for 'شهر' (town), denoting that it's a newly established location.