Letter on position 1 (w) changed: 12 words backs dacks hacks jacks lacks macks packs racks sacks tacks yacks zacks Letter on position 2 (a) changed: 2 words wicks wocks Letter on position 3 (c) changed: 4 words walks wanks warks wauks Letter on position 5 (s) changed: 3 words wacke wacko wacky