This is the 229th most frequent Persian word.
جای
"جای" means "place" or "spot" in English.
Here, 'جای' refers to a location or spot indicated by 'my'.
این جای من است.
This is my place.
Here, 'جای' denotes a figurative space associated with a honor or reward.
برای جایزهات یک جای خوب گرفتی.
You got a good spot for your reward.
In this sentence, 'جای' is used to imply substitution or taking someone's place.