name, noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   A sack for carrying coal.
2. 2
   Any of the spaces in the Milky Way which are very black, owing to the nearly complete absence of stars.

Proper Noun

1. 1
   The dark nebula near the constellation of the Southern Cross.

Synonyms

All synonyms

dark cloudnebula

Etymology

From coal + sack.

Related phrases

dark nebulamilky way

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