Synonyms|135Antonyms|1|Broader|9Narrower|19Related|36
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nasal duct
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nook(noun, space, hole, hollow)
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pitfall
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purulence
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purulency
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pustule
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sinkhole
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sinuosity
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space(hole, hollow)
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strip
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strip mine(expression, idiom, concavity)
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suppuration
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utricle
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vacuity(space, hole, hollow, pocket, crater)
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void(noun, space, hole, hollow, pocket)
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APASmart Define. (2015). sinus thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/sinus/thesaurus/synonyms
ChicagoSmart Define. 2015. "sinus thesaurus" https://smartdefine.org/sinus/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, sinus thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/sinus/thesaurus/synonyms>.
MLASmart Define. "sinus thesaurus" 10 April 2015. Web. 20 September 2026. <https://smartdefine.org/sinus/thesaurus/synonyms>