verb
declare
dih-KLAIR/dɪˈkler/
To state something formally, clearly, or publicly.
The man declares his decision publicly, speaking into the microphone.

Etymology
To declare was originally to explain or make clear, with de- perhaps intensifying that action. The meaning extended to making something known explicitly in words, including a formal or public announcement.
In context
we are preparing to declare a state of national emergency
More examples
- She declares her intention to run for office.
- The judge declared the agreement invalid.
- Travelers must declare valuable purchases when they return home.
Forms
declare · declares · declared · declaring
declaration noun — A formal or public statement of something.