This is the 12552nd most frequent Spanish word.
misiva
"Misiva" means "letter" or "written message."
The word 'misiva' here is employed to describe a formal or written communication, typically a letter.
He recibido una misiva de mi amigo en el extranjero.
I have received a letter from my friend abroad.
In this sentence, 'misiva' refers to the physical document handed or sent containing written information.
La misiva contenía noticias importantes respecto a la celebración.
The letter contained important news regarding the celebration.
This usage highlights 'misiva' as the act or concept of letter-writing as a communicative method.