Letter on position 1 (p) changed: 13 words books cooks dooks gooks hooks jooks kooks looks mooks nooks rooks sooks zooks Letter on position 3 (o) changed: 5 words pocks polks ponks porks pouks Letter on position 4 (k) changed: 7 words poods poofs poohs pools poons poops poots Letter on position 5 (s) changed: 1 word pooka