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to shine; to sparkle; to twinkle; to glitter; to glisten
to light up (with happiness, hope, etc.); to beam; to gleam; to glow
朝日を浴びて海面が金色に赫いていた。
The sea surface sparkled gold in the morning sun.
夜空に無数の星が赫くのを見上げた。
I looked up at countless stars shining in the night sky.
明かりが部屋を赫かしている。
The light is illuminating the room.