Grapple rhymes with:
appel, appell, apple, cappel, chapel, chappel, chappell, chapple, happel, kappel, mapel, schappell, shappell, snapple, stapel
Grapple sounds like:
garafalo, garafola, garble, garofalo, garofolo, grabel, grabill, grable, gravel, gravell, gravelle, gravelly, gravely, gravley, graybeal, graybill, greubel, gribble, griebel, grovel, gruffly