French phrase
Merci d'avance.
Meaning
Thanks in advance.
When to use it
A polite thanks before a request. It is used from friendly conversations to workplace requests and sounds slightly casual in speech.
Example dialogue
Merci d'avance. Tu peux me prêter ton parapluie ce soir ?
Thanks in advance. Can you lend me your umbrella tonight?
Pas de problème, tu peux le prendre chez moi.
No problem, you can pick it up at my place.