What is est ton when translated from French to English?

"Est ton" in French doesn't make grammatical sense on its own. It's likely a misspelling or a fragment of a larger sentence.

Here are some possibilities of what you might be looking for:

* "C'est ton..." This means "It's your..." and would be followed by a noun. For example: "C'est ton livre." (It's your book.)

* "Est-ce que ton..." This means "Is your..." and would be followed by a noun or adjective. For example: "Est-ce que ton chat est noir?" (Is your cat black?)

Could you please provide more context or the full sentence so I can give you a more accurate translation?