The content which is announced.
An act of announcing, or giving notice.
That which conveys what is announced.
The public exposure of an issue or topic.
The bodily process of breathing; the inhalation of air to provide oxygen, and the exhalation of spent air to remove carbon dioxide.
An exchange of views during a discussion.
The mechanical system used to assist breathing.
The replacement of stale or noxious air with fresh.
The mechanical system used to circulate and replace air.