Letter on position 1 (r) changed: 13 words cain fain gain hain kain lain main nain pain sain tain vain wain Letter on position 2 (a) changed: 3 words rein roin ruin Letter on position 3 (i) changed: 2 words raun rawn Letter on position 4 (n) changed: 6 words raia raid raik rail rais rait