Words formed when one letter is changed in plunker
Letter 1 (P) changed: 3 word found:
No words found when changing letter 2 (L).
Letter 3 (U) changed: 2 word found:
Letter 4 (N) changed: 1 word found:
Letter 5 (K) changed: 2 word found:
No words found when changing letter 6 (E).
Letter 7 (R) changed: 1 word found:
A total of 9 words can be formed from plunker by changing one letter.