blackness has definitions from the field of color
1
[ noun ] (color) the quality or state of the achromatic color of least lightness (bearing the least resemblance to white)

Synonyms

black

Used in print

(Clayton C. Barbeau, The Ikon....)

Prevot came_up `` Take that spot over there '' , he whispered , pointing to a small clump of blackness .

(Frieda Arkin, "The Light of the Sea," in The...)

They were climbing the hill in the night when the headlights abruptly probed solid blackness , became two parallel luminous tubes which broadened out into a faint mist of light and ended .

2
[ noun ] total absence of light

Examples

"they fumbled around in total darkness" "in the black of night"

Used in print

(Octavia Waldo, A Cup of the Sun....)

Or the surging whirling sounds of bats at night , when their black bodies dived into the blackness above and below the amber street_lights .

Related terms

dark

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