Crossword clues for the word: MEGATONS The word MEGATONS has appeared as an answer to at least 8 crossword clues on different crossword puzzles. Crossword clues for MEGATONS Showing 1 to 8 of 8 results Clue(s) Explosion units Explosive forces. Explosive power units Explosive units Fusion bombs' units H-bomb bang measure Huge weights Measure for H-bombs.