How do you say in french how say?

There are a few ways to say "how do you say" in French, depending on the context:

Formal:

* Comment dit-on... ? (Most common and versatile)

* Comment s'appelle... en français ? (Literally: "What is the name of... in French?")

Informal:

* Comment on dit... ? (Similar to "Comment dit-on..." but more casual)

* C'est comment... ? (Literally: "How is it... ?")

Examples:

* Comment dit-on "hello" en français? (How do you say "hello" in French?)

* Comment dit-on "thank you" ? (How do you say "thank you"?)

* C'est comment "bonjour" en anglais? (How do you say "bonjour" in English?)

It's always best to choose the appropriate level of formality based on the situation and your relationship with the person you're talking to.