"Correos" in Spanish means "mail" or "post office." It is commonly used to refer to postal services or to describe mail-related activities.
Edificio Correos was created in 1917.
A postage stamp is un "sello" (sello de correos)
Correos - Barcelona Metro - was created in 1934.
Correos - Barcelona Metro - ended in 1972.
Correos de Chile was created in 1750.
Correos de Costa Rica was created in 1839.
Correos is the common name for Sociedad Estratal de Correos y Telegrafos S.A., which is the natonal postal service of Spain. It is one of the largest postal services in the world.
Casa de Correos y Telegrafos was created in 1897.
Correo is the proper Spanish word for "Post Office," but occasionally Hispanics that have a heavy English influence will say "Postal" instead of correo.
To write e-mails
In Spain, collection boxes (post boxes) are bright yellow. Many of the modern ones are cylindrical, sometimes with the word "Correos" written sideways, bottom to top.