Letter on position 1 (r) changed: 13 words bens cens dens fens gens hens kens lens pens sens tens wens yens Letter on position 2 (e) changed: 2 words rins runs Letter on position 3 (n) changed: 14 words rebs recs reds rees refs regs rehs reis rems reos reps rets revs rews Letter on position 4 (s) changed: 4 words rend renk rent reny