To Shine, To Glitter, To Sparkle
godan verb
Because the hiragana ends with an う sound, you know this word is a verb. The kanji itself means radiance. Imagine if something is radiating on something else. That would cause it to shine or to glitter or to sparkle.
かがやく
The cog yak is so shiny. It's so shiny that it starts to shine and glitter. I don't know what a cog yak is, but imagine it in your head and imagine it being super shiny, shining off shines and glitter.
明るく輝く月の下で、飲酒運転取締り検問所にひっかかり、飲酒運転の罪で速攻逮捕されてしまいました。
Under the bright, shining moon, I was caught in the sobriety checkpoint and promptly arrested for driving under the influence.