This is the 13092nd most frequent Spanish word.
postal
A "postal" is a postcard.
Here, 'postal' refers to a physical postcard, a card often sent to share travel experiences or greetings.
Recibí una postal de mi amiga que está viajando por Europa.
I received a postcard from my friend who is traveling in Europe.
In this case, 'postal' is part of 'código postal,' referring to a system of numbers used for mail sorting and delivery, similar to 'zip code'.
El código postal de esta área es 12345.
The postal code for this area is 12345.
Here, 'postal' describes something related to the postal service or the process of delivering mail.