This is the 8788th most frequent Polish word.
rudi
"Rudi" is not a standard Polish word; it is commonly used as a nickname or refers to a reddish color or someone with red hair.
In this sentence, 'ruda' (feminine form of 'rudy') is an adjective describing the girl's red hair color.
Ruda dziewczyna siedzi obok mnie.
The red-haired girl is sitting next to me.
Here, 'rudy' is used as an adjective to describe the fur color of the cat, indicating a red or ginger tone.
Mój kot ma rudy futerko.
My cat has red fur.
In this sentence, 'rudego' is the masculine singular accusative form of 'rudy', describing the dog's coat color.