Crossword clues for the word: SPLINE The word SPLINE has appeared as an answer to at least 11 crossword clues on different crossword puzzles. Crossword clues for SPLINE Showing 1 to 11 of 11 results Clue(s) "Long, thin strip" Curve-drawing aid Feather key Flexible strip of wood Metal strip Pliable strip Pliable strip used for drawing curves Strip for drawing curves Thin flexible strip. Wooden or metal strip Wooden strip