brightness; splendour; splendor
light spot (e.g. a blip on radar); luminous dot; always-on pixel (as a defect in LCD displays); stuck pixel
brilliant (of light); shining
high luminance (used to describe bold-face text on display screen)
uneven brightness (e.g. on a computer display); luminance unevenness
luminance signal; Y signal
Japanese calendar's six labels, indicating how auspicious each day is
vitreous copper; copper glance; chalcocite