Meaning of the word "postal service" in English

What does "postal service" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

postal service

US /ˈpoʊ.stəl ˈsɜːr.vɪs/
UK /ˈpəʊ.stəl ˈsɜː.vɪs/

Noun

the system or organization responsible for delivering mail and packages

Example:
I need to go to the postal service to mail this package.
The postal service delivers mail six days a week.