This is the 416th most frequent Finnish word.
kova
Hard; tough.
In this sentence, 'kova' describes a physical property of the floor, meaning hard or solid in texture.
Tämä lattia on todella kova.
This floor is really hard.
Here, 'kova' is used metaphorically to describe a person's character, indicating diligence or a strong work ethic.
Hän on kova työskentelemään.
They are hardworking.
In this context, 'kova' modifies 'kiire' (hurry), emphasizing the intensity or seriousness of the situation.