17
navel(noun, centrality, belly button, omphalos, omphalus)
14
omphalos(noun, navel, belly button, omphalus)
12
bellybutton(noun, navel, belly button, omphalos, omphalus)
9
omphalus(noun, navel, belly button, omphalos)
8
belly button(noun, expression, idiom, navel, omphalos)
5
core(noun, centrality)
5
stomach-button(noun, navel, belly button, omphalos, omphalus)
5
stomach button(noun, navel, belly button, omphalos, omphalus)
4
heart(noun, centrality)
4
kernel(noun, centrality)
4
marrow(noun, centrality)
4
nucleus(noun, centrality)
4
pith(noun, centrality)
3
innie(noun, navel, belly button, omphalos, omphalus)
3
nave
3
outie(noun, navel, belly button, omphalos, omphalus)
3
pipik(noun, navel, belly button, omphalos, omphalus)
3
tummy button(noun, navel, belly button, omphalos, omphalus)
2
backbone(noun, centrality)
2
center
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APASmart Define. (2015). umbilicus thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/umbilicus/thesaurus/synonyms
ChicagoSmart Define. 2015. "umbilicus thesaurus" https://smartdefine.org/umbilicus/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, umbilicus thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/umbilicus/thesaurus/synonyms>.
MLASmart Define. "umbilicus thesaurus" 10 April 2015. Web. 20 September 2026. <https://smartdefine.org/umbilicus/thesaurus/synonyms>