What does the french sentence fort je ne mean in English?

"Fort je ne" is not a grammatically correct French sentence. It's likely a misspelling or incomplete phrase.

Here's why:

* "Fort" means "strong" or "fort" in French. It's an adjective.

* "Je ne" is the beginning of a negative construction in French, meaning "I don't."

To make a complete sentence, you would need to add a verb after "je ne."

Here are some possible correct sentences:

* "Je ne suis pas fort." - "I am not strong."

* "Je ne suis pas d'accord." - "I don't agree."

* "Je ne sais pas." - "I don't know."

Please provide more context or the full sentence for a more accurate translation.