Letter on position 1 (b) changed: 11 words caster easter faster gaster laster master paster raster taster vaster waster Letter on position 2 (a) changed: 2 words bister buster Letter on position 3 (s) changed: 5 words baiter banter barter batter baxter Letter on position 4 (t) changed: 2 words basher basser Letter on position 6 (r) changed: 2 words basted bastes