Informal:
* Ma femme: This translates literally to "my wife," but it's often used affectionately for a girlfriend or partner, especially in a long-term relationship.
* Ma chérie: This means "my darling" and is a very loving and intimate way to refer to your partner.
* Mon amour: This means "my love" and is another very affectionate and romantic way to refer to your partner.
* Ma petite: This means "my little one" and is a playful and affectionate way to refer to your partner.
Formal:
* Ma compagne: This means "my companion" and is a more formal way to refer to your partner.
* Mon partenaire: This means "my partner" and is a neutral way to refer to your partner.
Contextual:
The best way to say "my woman" in French depends on the specific situation and your relationship with the woman. For example, if you're introducing your girlfriend to someone, you might say "C'est ma copine" (This is my girlfriend).
Ultimately, the best way to say "my woman" in French is to choose a phrase that reflects the nature of your relationship and your desired level of intimacy.