Letter on position 1 (m) changed: 13 words bars cars ears fars gars jars lars oars pars sars tars vars wars Letter on position 2 (a) changed: 2 words mirs mors Letter on position 3 (r) changed: 14 words maas macs mads maes mags maks mals mams mans maps mass mats maws mays Letter on position 4 (s) changed: 10 words mara marc mard mare marg mark marl marm mart mary