Crossword clues for the word: CYPHER The word CYPHER has appeared as an answer to at least 7 crossword clues on different crossword puzzles. Crossword clues for CYPHER Showing 1 to 7 of 7 results Clue(s) "Naught, in Nottingham" 2002 Lucy Liu sci-fi film Code breaker's challenge Henry Percy developed a secret code Nonentity, Brit. Soho O Zilch: var.