Synonyms|135Antonyms|0|Broader|6Narrower|0Related|196

75 entries under noun topic. ×

1
silica
1
silicate
1
spar
1
sulfur
1
talcum
1
vermiculite
0
chalk
0
chlorite
0
chromite
0
clay
0
coal
0
bootleg
0
coulee
0
scoria
0
volcano matter(expression, slag)
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APASmart Define. (2015). obsidian thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/obsidian/thesaurus/synonyms
ChicagoSmart Define. 2015. "obsidian thesaurus" https://smartdefine.org/obsidian/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, obsidian thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/obsidian/thesaurus/synonyms>.
MLASmart Define. "obsidian thesaurus" 10 April 2015. Web. 29 September 2026. <https://smartdefine.org/obsidian/thesaurus/synonyms>