noun ·Moderate ·College level

Definitions

Noun

1. 1
   A window, dome, or opening in the roof or ceiling, to admit natural light.
2. 2
   a window in a roof to admit daylight wordnet
3. 3
   Diffuse sky radiation—solar radiation reaching the earth's surface after having been scattered from the direct solar beam by molecules or suspensoids in the atmosphere.
4. 4
   A hole in the upper part of a lava tube, yielding a view of the lava within.
5. 5
   A region of flat, thin ice allowing a submarine to surface.

Synonyms

All synonyms

afterglowair glowbaybay windowbow windowcandescence

Example

More examples

"A room with a skylight would be fine."

Etymology

From sky + light.

Related phrases

lava tube

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.