Crossword clues for the word: SEALOFF The word SEALOFF has appeared as an answer to at least 8 crossword clues on different crossword puzzles. Crossword clues for SEALOFF Showing 1 to 8 of 8 results Clue(s) Barricade E-f.Hdh Hermetically contain Isolate securely (2 wds.) Keep anyone from entering Prevent exit or entry. Restrict access to Surround with a barricade