This is the 3264th most frequent Dutch word.
grijs
Gray (colour).
Here, 'grijs' describes the color of the sky, used as an adjective.
De lucht is vandaag grijs.
The sky is gray today.
In this sentence, 'grijs' refers to the color of someone's hair, also an adjective.
Mijn grootvader heeft grijs haar.
My grandfather has gray hair.
Here, 'grijs' appears as part of a noun phrase 'grijstinten', which refers to tones of gray.