IPA: //ˈnaɪt.ləs//
KK: /ˈnaɪtləs/
Describing a time or place that does not experience night or darkness.
In the summer, the northern regions can have nightless days where the sun never sets.
Nightless → It is formed from "night" (from Old English *niht*, meaning the period of darkness) and "-less" (meaning without). The word "nightless" means without night or lacking a period of darkness.
Think of a time when there is no darkness at all — 'night' means the dark period, and '-less' means without. This helps you remember that 'nightless' refers to a time or place that lacks night.