Other forms: announced; announcing; announces
Announce means to make something public. Companies announce the release of new products, parents announce the marriages of their children, and school administrators announce changes to the day's schedule over the PA.
Announce has some subtler meanings as well—you might inadvertently announce your attention to go for the basket by looking at it during a game. You might very intentionally announce that you are never eating pizza again, if you want everyone you know to be aware of this.
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