- 1publicly and by someone who is in a position of authority The library will be officially opened by the mayor. We haven't yet been told officially about the closure. The institute is not an officially recognized English language school.
- 2according to a particular set of rules, laws, etc. Many of those living on the streets are not officially homeless. I'm not officially supposed to be here.
- 3according to information that has been told to the public but that may not be true Officially, he resigned because of bad health.
Check pronunciation: officially