As a preposition:
* Of: This is the most common translation, often used to indicate possession or origin. Example: "Le livre de Marie" translates to "Mary's book."
* From: Used to indicate a starting point or origin. Example: "Je viens de Paris" translates to "I come from Paris."
* With: Can be used to indicate an instrument or tool. Example: "Il a écrit la lettre de sa main" translates to "He wrote the letter with his own hand."
* About: Used to indicate a topic or subject. Example: "On parle de la météo" translates to "We are talking about the weather."
* By: Used to indicate the agent or cause of an action. Example: "Le chien est aimé de tous" translates to "The dog is loved by everyone."
* In: Can be used to indicate a place or time. Example: "Je suis de l'avis de mon père" translates to "I agree with my father."
* To: Used to indicate a destination or goal. Example: "Je vais de Paris à Londres" translates to "I am going from Paris to London."
As a part of an adjective:
* "De" can be part of a compound adjective: In these cases, it's not translated directly, but contributes to the overall meaning. Example: "Un homme de bonne humeur" translates to "A man in good spirits."
Other:
* "De" can also be used in conjunction with other prepositions: "En dehors de" means "outside of," "à côté de" means "next to," etc.
It's important to look at the surrounding words and context to determine the best translation for "de".