We don't have synonyms for akropolis yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are acropolis, propolis and nekropolis.
(n) :
Alternative spelling of acropolis. [A promontory (usually fortified with a citadel) forming the hub of many Grecian cities, and around which many were built for defensive purposes before and during the classical period; compare Acropolis.]
(n) :
Alternative spelling of Acropolis. [The Athenian Acropolis. (Compare acropolis.)]
(n) :
Alternative spelling of acropolis. [A promontory (usually fortified with a citadel) forming the hub of many Grecian cities, and around which many were built for defensive purposes before and during the classical period; compare Acropolis.]
(n) :
Alternative spelling of Acropolis. [The Athenian Acropolis. (Compare acropolis.)]