Synonyms of coal

1 Syllable
black, char, fuel, spark, culm, ash, smut, slack, sloe
2 Syllables
ember, stoke, cinder, blackest, scoria, slater, charcoal, onyx, piceous, stygian, starless, pitch-black, blacker, pitchy, carbon, carbons
3 Syllables
graphite, melanoid, inklike, coaler
4 Syllables
anthracite