lastmessage

noun
UK /ˈlɑːstˌmɛsɪdʒ/
US /ˈlæstˌmɛsɪdʒ/

The last message is the final note someone sends in a chat.

She read the lastmessage before closing the app.


OTHER MEANINGS

2. The most recent message in a list, even if more may come later.

The lastmessage at the top of the screen was from Mom.

3. A farewell message sent when someone leaves a group.

He posted a lastmessage to say goodbye to the team.

4. The final line of a story or letter.

The lastmessage in the letter was 'See you soon!'