announce (something) to
To make a public declaration about something. We haven't announced our pregnancy to anyone yet—you're the first to know! The boss hasn't announced his decision to the office yet, so we still don't know who got the promotion.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
announce something to someone
to tell something publicly to someone. The president announced his nominee for attorney general to the media. When was the news announced to the public?
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.