bidder, bigger, bitter, blister, blizzard, cistern, cither, clearer, Clifford, clipper, dearer, differ, digger, dinner, fiddler, filler, Fischer, Fisher, fissure, fitter, flicker, Gifford, giver, glimmer, glitter, hither, Hitler, Hitler's, inner, killer, liquor, listener, Lister, litter, liver, livres, lizard, Miller, mirror, Mister, nearer, nigger, pillar, pitcher, printer, prisoner, Pritchard, quicker, quiver, Richard, richer, rigor, Ritter, river, Schiller, scissors, shippers, shiver, sinner, sister, Skinner, skipper, slipper, spinner, swifter, swimmer, thicker, thinner, thither, tiller, trigger, Vicar, vigor, vigour, whiskers, whisper, whither, wicker, Willard, winner, wishers, wither, wizard

beginner, consider, deliver, embitter, transmitter