/əˈfɪʃəlɪ/ – adverb
Definition: Chính thức, theo cách chính thức.
A more thorough explanation: 1according to what is said publicly, although this might not be true
2. openly, publicly, and formally
Example: 1. Officially, the government is pursuing only non-military means to solve the conflict.
2. The closure was officially announced on Monday.