Sky darkening Synonyms

Sky replaced

horizon darkening

Definitions for Sky

(noun) the expanse of air surrounding the earth
(noun) a dwelling place of perfect happiness for the soul after death
(noun) the atmosphere and outer space as viewed from the earth

Synonyms for phrase

SD abbreviation

SD is an abbreviation for Sky Darkening

What does SD stand for?

SD stands for "Sky Darkening"

Definitions for Darkening

(adjective) causing or marked by an atmosphere lacking in cheer
(noun) changing to a darker color
(adjective) becoming dark or darker as from waning light or clouding over