Dictionary.com
Thesaurus.com

acropolis vs. Parthenon

[uh-krop-uh-lis] / əˈkrɒp ə lɪs /

noun

  1. the citadel or high fortified area of an ancient Greek city.

  2. the Acropolis, the citadel of Athens and the site of the Parthenon.

[pahr-thuh-non, -nuhn] / ˈpɑr θəˌnɒn, -nən /

noun

  1. the temple of Athena Parthenos on the Acropolis at Athens, completed c438 b.c. by Ictinus and Callicrates and decorated by Phidias: regarded as the finest Doric temple.