It means "to know".
Savoir (verb) means "to know". "Le savoir" (masculine noun) means the knowledge.
I don't think there's much difference between the two terms, but I would say that 'savoir-faire' is the English word know-how transposed into French. Perhaps you could say that it is slightly more general than expertise.
"le savoir-faire" (masc., takes no plural mark as it is formed from two verbs) it is the knowledge and skill required to do something correctly; the know-how.
The French word for "knowledge" is "connaissance."
I think you may mean 'savoir faire', which literally means 'to know how to do'
It's not a French word
"terai" is not a french word.
if you mean the english word OR then it's ouif you mean the french word OR then it means gold
The French word "noisette" means "hazelnut" in English.
The French word "oui" (pronounced "we") translates to "yes" in English. The English word "we" translates to "nous" (pronounced "new") in French.
Nault isn't a French word.
The French word "la" means "the" in English.