Quick answer
Amaterasu is a girl name meaning "shining over heaven".
Pronunciation: Japanese /ä.mä.te̞.ɾä.sɨᵝ/.
Meaning and history
The name means "shining over heaven", from Japanese 天 ( ama ) meaning "heaven, sky" and 照 ( terasu ) meaning "shine". This was the name of the Japanese sun goddess, the ruler of the heavens. She was born when Izanagi washed his left eye after returning from the underworld. At one time the Japanese royal family claimed descent from her.
Notes and context
Usage: japanese mythology | Japanese Hiragana: あまてらす; Japanese Katakana: アマテラス