RE could stand for Religious Education. That would be, éducation religieuse, in French. This class doesn't exist in public schools and is not mandatory in private, religious ones.
re
"Ile de Re" in French translates to "Isle of Re" in English. "Ile" means "island" and "Re" is the name of the specific island.
"Cal sup re" means nothing in French.
Religion
My great-grandfather is mon arrière-grand-père in French.
Mother is "mère" in French.
"arrière-grand-mère"
Où est le cimetière / où se trouve le cimetière ? are French translations of "where is the cemetery" in French.
"Arrière-grand-mère" is how you say great-grandmother in French.
The French word for brother is Frère. The F in frère doesn't stand for anything.
bitter in French is 'amer, amère'
First is "premier / première" in French.