This is the 6288th most frequent Polish word.
bluza
Sweatshirt or blouse.
The word 'bluza' here refers to a casual piece of clothing worn on the upper body, similar to a sweatshirt.
Kupiłem nową bluzę na wyprzedaży.
I bought a new sweatshirt on sale.
In this sentence, 'bluza' describes a piece of clothing that the speaker is currently wearing, emphasizing its comfort.
Bluza, którą noszę, jest bardzo wygodna.
The sweatshirt I'm wearing is very comfortable.
'Bluza' is used here to denote a specific garment belonging to the speaker, specified by its color.