Meaning of the word "stay in touch with" in English

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

stay in touch with

US /steɪ ɪn tʌtʃ wɪð/
UK /steɪ ɪn tʌtʃ wɪð/

Idiom

to maintain communication with someone

Example:
Let's promise to stay in touch with each other after graduation.
It's important to stay in touch with old friends.