Crossword clues for the word: C3PO The word C3PO has appeared as an answer to at least 2 crossword clues on different crossword puzzles. Crossword clues for C3PO Showing 1 to 2 of 2 results Clue(s) Sci-fi character who claims fluency in more than six million forms of communication Sci-fi sidekick ... or a hint to 42- and 53-Across