Welcome to the forum!
It will be very recommended to improve your english as much as you can if you want to learn and use Dynamo. Coding is in english anyway and there will be no translation for that. You will need specific terms very often, and at first for browsing the forum through the search field (the top right of this page).
A good way to learn english is to study existing Dynamo tutorials such as the Primer:
http://dynamoprimer.com/en/01_Introduction/1_introduction.html
You will find information on OOTB (Out Of The Box) nodes in the Dictionary:
http://dynamoprimer.com/en/01_Introduction/1_introduction.html
You will find infos about custom nodes here:
When there is still a doubt about a technical term in Revit, you just need to change the address of an Autodesk help page like this:
http://help.autodesk.com/view/RVT/2017/ENU/?guid=GUID-403FFEAE-BFF6-464D-BAC2-85BF3DAB3BA2
http://help.autodesk.com/view/RVT/2017/FRA/?guid=GUID-403FFEAE-BFF6-464D-BAC2-85BF3DAB3BA2
We can see that, even in french, terms are very specific. When you really can’t find the exact translation, just use the french term with “quotation marks” so that we know it should be interpreted.
This forum is used all around the world and the best way to make you understood will be to send some illustrations of your work on which your issue is clearly visible. For non-English speaking people, it’s a bit of more efforts but everybody is used to that here anyway.
Lastly, do not forget to read the forum guidelines where it is explained how to ask for help so as to keep this place neat, practical and friendly for all: