Crossword clues for the word: TACHYON The word TACHYON has appeared as an answer to at least 5 crossword clues on different crossword puzzles. Crossword clues for TACHYON Showing 1 to 5 of 5 results Clue(s) "It travels faster than light, theoretically speaking" Hypothetical particle recreated on yacht Hypothetical particle that travels faster than light No yacht could be something travelling faster than light Speedy subatomic particle