Avisos (en. Notices)

/aˈβisos/

Slang Meanings

Informal notice or notification among friends.
I'm sending you a notice via WhatsApp so you don't forget about the meeting.
Te mando un aviso por WhatsApp para que no te olvides de la reunión.
Informal advice or recommendation.
A notice: don't go out without a coat, it's very cold.
Un aviso: no salgas sin abrigo, hace mucho frío.