This is the 118th most frequent French word.
santé
Health.
Here, 'santé' refers to one's physical and mental well-being.
Je prends soin de ma santé.
I take care of my health.
In this context, 'santé' is used metaphorically as part of a congratulatory toast, wishing health and good fortune.
Portons un toast à la santé de l'heureux couple.
Let's toast to the health of the happy couple.
In this case, 'santé' is used in an institutional sense, referring to the health of the population collectively.