"navels" in the noun sense
1. navel, umbilicus, bellybutton, belly button, omphalos, omphalus
a scar where the umbilical cord was attached
"you were not supposed to show your navel on television"
"they argued whether or not Adam had a navel"
"she had a tattoo just above her bellybutton"
2. navel, navel point
the center point or middle of something
"the Incas believed that Cuzco was the navel of the universe"
Source: WordNet® (An amazing lexical database of English)
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