Crossword clues for the word: ACTIUM The word ACTIUM has appeared as an answer to at least 4 crossword clues on different crossword puzzles. Crossword clues for ACTIUM Showing 1 to 4 of 4 results Clue(s) """Antony and Cleopatra"" battle site" Promontory in western Greece off of which Octavian defeated Mark Antony in a naval battle in 31 BC Site of Cleopatra's defeat Where Octavian beat Antony and Cleopatra in 31 B.C.