We don't have synonyms for estadio yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are estado and stadio.
(n) :
(historical) A traditional Portuguese unit of distance, variously equivalent to about 185.2, 231.5, or 257.2 m depending on the number of leagues per equatorial degree.
(n) :
(historical) A traditional Portuguese unit of distance, variously equivalent to about 185.2, 231.5, or 257.2 m depending on the number of leagues per equatorial degree.