French phrase
Pouvez-vous l'expliquer en ~ ?
Meaning
Can you explain it in ___?
When to use it
A polite request for an explanation in a specified form. It is common in conversation and can ask about length or wording.
Example dialogue
Pouvez-vous l'expliquer en un mot ?
Can you explain it in one word?
Oui : c'est la simplicité.
Yes: it's simplicity.