Kurai is dark in Japanese.
Yami no hi would be flame of darkness
Kuro na Oji Which means 'prince of darkness'
Yami no tenshi means angel of darkness.
Kurai, which means like "It's dark." Koi, which means like "dark colors".
ankoku, kuragari, kurayami, yami
Dark is an adjective darkness is a noun
It could have several different meanings depending on the kanji used. Yami means dark or darkness, but "shin" has many different meanings, so the phrase could mean any of the following: Dark Mind/Mind of Darkness Dark Heart/Heart of Darkness Dark God/God of the Dark/God of Darkness Dark Forest Dark Wood New Darkness Parent/Kinship of Darkness True Darkness Core of Darkness Dark Water Trust in Darkness/Faith in Darkness Without context it's hard to determine which meaning is meant.
To change the adjective "dark" to a noun, you can use "darkness".
No, the darkness is just that; Darkness
Darkness is the abstract noun.
In Japanese it means Darkness
dark in Japanese is kurai