Can you change the word Three to the word Seven in five steps or less with the following rules:
You must exactly replace two letters; one vowel and one consonant of the word in each step with a different consonant and a different vowel. The new vowel or the new consonant can go in the place of either the consonant or the vowel in the preceeding word. You cannot replace the letter with exact same letter. Replacing the vowel and the consonant with either 2 vowels or two consonants not allowed.
The new word must be in the Merriam Webster dictionary.
No anagrams or rearrangements or Proper nouns or abbreviations or acronyms.
I think this can be done in 5 or 4 steps.