n. The light of day; the direct light of the sun, as distinguished from night and twilight, or from artificial light.n. Daytime as opposed to night-time; the time when the light of day appears; early morning.n. The space left in a wine-glass between the liquor and the brim, and not allowed when bumpers are drunk, the toast-master calling out, “No daylights!”n. plural The eyes.n. A name of the American spotted turbot, Lophopsetta maculata, a fish so thin as to be almost transparent, whence the name. Also called window-pane.