I'm currently developing a Hangman game in English for a French website that teaches English. I'm looking for a database containing a set of English words, preferably common nouns or verbs of more than 5 letters, and ideally their French translation. TIA
In this case, I'd suggest using the flashcards from an Anki deck.
Here's a list of French decks: https://ankiweb.net/shared/decks/french
You can convert the deck to txt/csv with these steps: https://ankiweb.net/shared/info/1589071665
Once you have the txt/csv file, you can easily either manually or with a simple script prune the list to meet your need (e.g. 5 letters or more).
(License & Terms of using Anki decks)
Another option is one of the many online lists "N most commonly used French words". Here's a generic search to get you started.