messaging
US /ˈmes.ɪ.dʒɪŋ/
UK /ˈmes.ɪ.dʒɪŋ/

1.
the activity of sending messages, especially by phone or computer
:
•
Instant messaging has become a popular way to communicate.
•
The app offers secure end-to-end encrypted messaging.
the activity of sending messages, especially by phone or computer