| navel(noun, centrality, belly button, omphalos, omphalus) | |
| omphalos(noun, navel, belly button, omphalus) | |
| bellybutton(noun, navel, belly button, omphalos, omphalus) | |
| omphalus(noun, navel, belly button, omphalos) | |
| belly button(noun, expression, idiom, navel, omphalos) | |
| core(noun, centrality) | |
| stomach-button(noun, navel, belly button, omphalos, omphalus) | |
| stomach button(noun, navel, belly button, omphalos, omphalus) | |
| heart(noun, centrality) | |
| kernel(noun, centrality) | |
| marrow(noun, centrality) | |
| nucleus(noun, centrality) | |
| pith(noun, centrality) | |
| innie(noun, navel, belly button, omphalos, omphalus) | |
| nave | |
| outie(noun, navel, belly button, omphalos, omphalus) | |
| pipik(noun, navel, belly button, omphalos, omphalus) | |
| tummy button(noun, navel, belly button, omphalos, omphalus) | |
| backbone(noun, centrality) | |
| center |
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Umbilicus on
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| APA | Smart Define. (2015). umbilicus thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/umbilicus/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "umbilicus thesaurus" https://smartdefine.org/umbilicus/thesaurus/synonyms (accessed September 20, 2026). |
| Harvard | Smart Define 2015, umbilicus thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/umbilicus/thesaurus/synonyms>. |
| MLA | Smart Define. "umbilicus thesaurus" 10 April 2015. Web. 20 September 2026. <https://smartdefine.org/umbilicus/thesaurus/synonyms> |