Grandchildren rhymes with:
schoolchildren, schoolchildren, cauldron, children, schoolchildren, stepchildren, waldren, waldron, audran, cauldron, chadron, children, condron, excedrin, gendron, hendron, hydron, kindran, madron, octahedron, padron, philodendron, polyhedron, ravindran, rhododendron, schoolchildren, squadron, stepchildren, tetrahedron, vorndran, waldren, waldron