Ziti pasta has many definitions, whichever you use , each containes a description of the shape which ziti should have. The name has derived from the plural of " Zito ", which in Italian means - the bridegroom . Ziti are sometimes directly compared to  penne , by virtue of its tubular shape, moreover it has also strips in a length of two inches. Rigatoni is also similar, however, it is broader than the ziti or penne. In penne the opening is wider than the hole in the drinking straw.