Letter on position 1 (n) changed: 14 words bets fets gets hets jets kets lets mets pets rets sets tets vets wets Letter on position 2 (e) changed: 3 words nats nits nuts Letter on position 3 (t) changed: 8 words nebs neds nefs negs neks neps ness news Letter on position 4 (s) changed: 2 words nete nett