Jeannette would be the equivalent for the English first name Janet.
You can say "la maison de John" in French to mean "John's house".
Jeannette would be the French equivalent of Janet.
Janet would be spelled "Jeannette" in French
The name John in French is "Jean."
Cher John
You would say "Bonjour John, comment ça va ?" in French.
j'aime Jean (or John)
Janet = Ianeke
John, fais attention aujourd'hui.
"John Patrick, tu me manques"
You would say "Évangile de Jean" in French.