IPA: /ˈbraɪtli/
KK: /ˈbraɪtli/
In a way that produces a lot of light or is very colorful.
The stars shone brightly in the night sky.
Brightly → It is formed from "bright" (from Old English "beorht", meaning shining or radiant) and "-ly" (a suffix meaning in a manner of). The word "brightly" means in a manner that is shining or radiant.
Think of something that is shining or radiant ('bright') and how it is done in a certain way ('-ly'). This helps you remember that 'brightly' means to shine in a radiant manner.