AEK Football Club ( Greek : Αθλητική Ένωσις Κωνσταντινουπόλεως , romanized : Athlitiki Enosis Konstantinoupoleos , lit. ' Athletic Union of Constantinople ' ), known simply as A.E.K. ( Greek : A.E.K. ; [aek] ) in Greece and AEK Athens internationally, are a Greek professional football club based in Nea Filadelfeia , Attica , Greece .
