This is the 13246th most frequent Russian word.
модныи
Fashionable.
The word "модный" is used here as an adjective describing the suit, indicating that it adheres to current fashion trends.
Этот костюм очень модный.
This suit is very fashionable.
The word "модный" describes the accessories, suggesting they are in line with what is currently popular or stylish.
Она всегда выбирает модные аксессуары.
She always chooses fashionable accessories.
Here, "модный" is used to indicate that the color green is currently fashionable according to seasonal trends.