Letter on position 1 (t) changed: 8 words bels cels dels eels gels mels sels zels Letter on position 2 (e) changed: 1 word tils Letter on position 3 (l) changed: 10 words teas tecs teds tees tefs tegs tems tens tets tews Letter on position 4 (s) changed: 5 words tela teld tele tell telt