This is the 8555th most frequent Polish word.
pro
"Pro" in Polish means "for" or "in favor of."
In this sentence, 'pro' is an adjective derived from English, used to denote items of professional or higher quality.
Lubię korzystać z nowych urządzeń pro, które są bardziej wydajne.
I like using pro devices, which are more efficient.
Here, 'pro' is informally used as an adjective to convey expertise or a professional level of skill in a field, especially gaming.
Jestem pro w grach komputerowych, zawsze wygrywam.
I am pro at computer games; I always win.
In this usage, 'pro' signifies a stance in favor of something, effectively coming from the Latin meaning 'for' or 'in favor of.'