Word flanking with one letter changed

Letter on position 1 (f) changed: 3 words

Letter on position 2 (l) changed: 1 word

franking

Letter on position 3 (a) changed: 1 word

flunking

Letter on position 4 (n) changed: 1 word

flacking

Letter on position 5 (k) changed: 1 word

flanging