brightness >> ˈbrʌɪtnəs
Definition: [noun] the quality or state of giving out or reflecting light.
Example: we can change the brightness of the bulb
Definition: [noun] the quality of being intelligent and quick-witted.
Example: he reminded me of my first son with his brightness and inquisitiveness
Definition: [noun] the quality of being cheerful or lively.
Example: there's so much light and brightness in their faces
Definition: [noun] the quality in sound of being clear, vibrant, and typically high-pitched.
Example: tone alters the brightness of the sound