Evolves, evolved
Erosive
ovarite
Solvent
The seven letter word could be: * Evoking (if the mystery letter was a K) * Vetoing (if the mystery letter was a T)
revived
overlie
One example of a word that starts with the letter O but is pronounced with a V sound is "ovary." It begins with an O but has a V sound in the middle.
The letter ''O'' is the answer
ovaries
There are none. Not even a 3 letter word
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