What is ooo meaning?

"OOO" is a term used in business and work culture, especially in Russia and the Commonwealth of Independent States. It stands for "Out of Office" and is used to indicate that a person is currently unavailable or absent from work. This can be due to vacation, illness, attending a conference or meeting, or any other reason. During this time, the person may set up an automatic email response or voicemail message to inform their colleagues or clients that they will not be available for a certain period of time. The term has also become popular on social media as a way to indicate a temporary break from online activity.