Words similar to sais

Example sentences for: sais

How can you use “sais” in a sentence? Here are some example sentences to help you improve your vocabulary:

On the other hand, Kylie Minogue does have a certain je ne sais pas about it (as I once heard someone say).
It's maybe three-fifths savoir-faire douched with two-fifths je ne sais quoi--if that's the mot juste.