messagesystem

noun
UK /ˈmesɪdʒ ˌsɪstəm/
US /ˈmesɪdʒ ˌsɪstəm/

A message system is a way for people or computers to send notes and information to each other.

The school uses a message system to tell parents about snow days.


OTHER MEANINGS

2. The software or service that stores and delivers electronic messages.

Our team set up a new message system so everyone gets alerts instantly.

3. A set of rules or channels used to pass information between machines.

The two computers talk through a simple message system.

4. A way of leaving notes for someone who is not there.

The family keeps a message system on the fridge with magnets and paper.