Word stems with one letter changed

Letter on position 1 (s) changed: 1 word

items

Letter on position 2 (t) changed: 1 word

seems

Letter on position 3 (e) changed: 2 words

stims
stums

Letter on position 4 (m) changed: 5 words

Letter on position 5 (s) changed: 1 word

steme