What is the French meaning for word rayez?

"Rayez" is not a standard French word. It is a common misspelling of the word "rayez" which is the imperative plural form of "rayer".

"Rayer" means to strike out, to cross out, to erase, or to delete.

So, "rayez" means "strike out!", "cross out!", "erase!", or "delete!" (plural imperative).