Crossword clues for the word: SPLINES The word SPLINES has appeared as an answer to at least 7 crossword clues on different crossword puzzles. Crossword clues for SPLINES Showing 1 to 7 of 7 results Clue(s) "Long, thin wood strips" Flexible wood strips Slats Slats used in drafting Thin construction strips Thin strips Thin strips used in building construction