This is the 9815th most frequent Swedish word.
gråa
"Gråa" means "gray" (plural or definite form) in English.
Here, 'gråa' modifies the plural noun 'molnen' (the clouds). It is the plural form carrying agreement with a definite plural noun.
De gråa molnen täckte himlen.
The gray clouds covered the sky.
In this sentence, 'gråa' modifies the plural noun 'tassar' (paws). It represents attribution to plural objects with an indefinite article.
Min katt har gråa tassar.
My cat has gray paws.
'Gråa' in this context modifies 'bilar' (cars) in a plural definite sense, emphasizing a general trend.