Letter on position 1 (h) changed: 16 words bats cats eats fats gats kats lats mats nats oats pats qats rats tats vats wats Letter on position 2 (a) changed: 4 words hets hits hots huts Letter on position 3 (t) changed: 8 words hads haes hags hahs hams haps haws hays Letter on position 4 (s) changed: 2 words hate hath