Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
charcoal-grey is an adjective meaning "of a very dark grey". It carries one recorded sense.
of a very dark grey
Definitions, synonyms and semantic relations for charcoal-grey come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.