This is the 1242nd most frequent French word.
vooruit
"Vooruit" is not a French word; it is Dutch and means "forward" or "ahead" in English.
The word 'de l'avant' is used metaphorically, often to signify making progress.
Je vais aller de l'avant avec ce projet.
I'm going to move forward with this project.
Here 'devant' is used literally to indicate physical direction.
Regardez devant vous lorsque vous marchez.
Look ahead of you when you walk.
In this case, the phrase suggests thinking ahead or being progressive.