This is the 9681st most frequent Russian word.
черное
"Черное" means "black" in English.
The word 'черное' is used here as an adjective in its singular, neuter form to describe the noun 'платье' (dress).
Это черное платье выглядит красиво.
This black dress looks beautiful.
The word 'черное' functions as an adjective in its singular, neuter form to describe the noun 'облако' (cloud).
Я увидел черное облако на горизонте.
I saw a black cloud on the horizon.
The word 'черное' is used here as a noun derived from the adjective, referring to the concept of the black color.