very special or rare
बहुत खास या दुर्लभ (bahut khaas ya durlabh)
"Her kindness makes her one in a million."
"उसकी दयालुता उसे वन इन अ मिलियन बनाती है।" (Uski dayaalta use **van in a million** banaati hai.)
the person or thing that motivates or leads progress
to solve a complex problem or mystery
to aim for something very high or ambitious
to accept criticism or blame.
what is normal or expected in a given situation
to aim for something very ambitious or difficult to achieve