Letter on position 1 (l) changed: 10 words bases cases eases gases mases oases pases rases vases wases Letter on position 2 (a) changed: 3 words leses loses lyses Letter on position 3 (s) changed: 9 words laces lades lakes lames lanes lares laves laxes lazes Letter on position 4 (e) changed: 1 word lasts Letter on position 5 (s) changed: 2 words lased laser