verb
announce
uh-NOUNSS/əˈnaʊns/
To make something known publicly or formally.
The principal announces the scholarship winners at the morning assembly.

Etymology
The pieces literally express bringing news to someone. That act of reporting underlies the word’s sense of proclaiming information or making it formally known.
In context
getting China and the United States to be able to stand up together to announce our intended reductions of emissions so that we could lead the world to go to Paris with momentum
More examples
- They announced their engagement in a letter to friends.
- The station will announce any changes to the timetable.
- She is announcing the results as each district reports.
Forms
announce · announces · announced · announcing
announcement noun — A public or formal statement of news.