Crossword clues for the word: SENNIT The word SENNIT has appeared as an answer to at least 5 crossword clues on different crossword puzzles. Crossword clues for SENNIT Showing 1 to 5 of 5 results Clue(s) Braided grass Cordage used on shipboard. Milliner's straw braid. Plaited grass for hats. Straw for hats.