"Jus". To say a flavoured juice (i.e. Apple juice) you would add the flavour to the end (i.e. Jus de pommes).
The French word for "juice" is "jus." However, your proper name Juice would be kept as is if you were addressed in French.
"Jus."
Jus
jus
jus de l'éléphant That is in french i take classes in french
sur le jus
orange juice
Jus de pomme (it means apple juice in French, btw)
Olivie juice is "Jus d'olive" and olive oil is "Huile d'olive."
Jus de Tomate
un jus d'ananas
jus de pêche