This is the 15901st most frequent Polish word.
tenisowy
"Tenisowy" means "tennis-related" or "pertaining to tennis" in English.
Here, 'tenisowe' is an adjective modifying 'piłki,' indicating that these balls are related to the sport of tennis.
Piłki tenisowe są niezbędne do gry w tenisa.
Tennis balls are essential for playing tennis.
In this sentence, 'tenisową' is an adjective describing the noun 'rakietę,' specifying its intended use for playing tennis.
Mam nową rakietę tenisową.
I have a new tennis racket.
Here, 'tenisowy' modifies 'turniej,' indicating the type of tournament, which is related to tennis.