French phrase
Prévoyez ~ de marge.
Meaning
Set aside ___ as a buffer.
When to use it
A practical request to reserve extra time or room. Often used in planning and scheduling.
Example dialogue
Prévoyez environ deux heures de marge.
Set aside about two hours as a buffer.
Très bien, je l'inscris au planning.
All right, I'll add it to the schedule.