Quick answer
За встре́чу!
za vstréchu — Russians toast to something, not with a single word
The options
За встре́чу!To our meeting! — the safest all-purpose toast
За тебя́!To you!
За вас!To you! — polite or plural
За дру́жбу!To friendship!
Бу́дем здоро́вы!To our health! — literally “let us be healthy”
Твоё здоро́вье!Your health!
The за здоро́вье myth
На здоро́вье is not a toast at all — it is what a host says when you thank them for the meal, closer to “you’re welcome”. За здоро́вье exists but sounds like a foreigner quoting a film. Name what you are drinking to instead: За встре́чу!
How a Russian toast works
Someone stands up, says a few sentences about why everyone is here, and ends with За…!. Then everyone drinks. The за takes the accusative, which is why it is за встре́чу and за дру́жбу.
What you hear back
За нас!To us!
Ура́!Hooray!
Прия́тного аппети́та!Enjoy your meal! — before eating, not drinking
Typical mistakes
На здоро́вье! as a toast
За встре́чу! / За вас!
На здоро́вье answers a thank-you for food.
За встре́ча!
За встре́чу!
за takes the accusative here.
Check yourself
What does На здоро́вье! actually mean?
It is the answer to a thank-you for food, not a toast.