The new telescope was officially unveiled at the astronomy conference, drawing researchers from around the world.
新望远镜在天文学会议上正式揭幕，吸引了来自世界各地的研究人员。
Which choice best defines “officially”?
A — In a formal and public way. “officially” means in a formal and public way.
Which word means “in a formal and public way”?
B — officially. “officially” means in a formal and public way.
officially — in a formal and public way. In Chinese: 正式地，官方地.
officially is pronounced /əˈfɪʃəli/.
The new telescope was officially unveiled at the astronomy conference, drawing researchers from around the world. (新望远镜在天文学会议上正式揭幕，吸引了来自世界各地的研究人员。)
formally, legally, publicly — all close in meaning to officially (in a formal and public way).
unofficially, informally — each the opposite of officially (in a formal and public way).
Yes. officially is on the SAT Prep Basic list — the everyday academic words the SAT assumes you already have. The Digital SAT does not test vocabulary in isolation; words like this one are tested through Words in Context questions, where you choose the word that completes a passage most logically and precisely.