internationalneutraltechnical
- The quality or condition of emitting or reflecting light; the degree of lightness or luminous intensity perceived from an object or source.
internationaltechnicalscientific
- A measurable attribute of a light source or astronomical object indicating its apparent luminance or magnitude as observed from a particular viewpoint.
internationalliteraryneutral
- Luster, sheen, or vividness in appearance, as of a surface, color, or ornament.
- Conspicuous attractiveness or radiance associated with an object or person.
internationalliteraryinformal
- Vivacity, cheerfulness, or spirited energy; the quality of appearing lively, spirited, or full of life.