This is the 1948th most frequent French word.
savez
"Savez" means "know" (second-person plural or formal singular form of "savoir").
The verb 'savez' is used here in the form of 'savez-vous,' inquiring formally about someone's knowledge of a location.
Savez-vous où se trouve la bibliothèque ?
Do you know where the library is?
In this sentence, 'savez' is used in a declarative manner, addressing the listener about their awareness of the weather outside.
Vous savez qu'il pleut dehors, n'est-ce pas ?
You know it's raining outside, right?
Here, 'savez' is part of a reported speech, questioning one's ability or knowledge about playing the piano.