What is another word for about?

There are many words you could use instead of "about", depending on the context and nuance you want to convey. Here are a few examples:

General:

* Concerning: "This report is concerning the company's finances."

* Regarding: "I have some questions regarding your application."

* On: "He wrote a book on the history of art."

* Pertaining to: "The documents pertaining to this case are confidential."

* With respect to: "With respect to your question, I can't give you a definitive answer."

* In relation to: "In relation to the project deadline, we are behind schedule."

Approximate:

* Around: "The party starts around 8 pm."

* Approximately: "The population of the city is approximately 1 million."

* Nearly: "The project is nearly complete."

* Roughly: "The trip takes roughly 3 hours."

Other:

* Concerning: "I'm concerned about your health."

* Regarding: "I'm writing to you regarding your recent purchase."

* Relating to: "This information relates to your case."

* Involving: "This incident involves several people."

* Touching on: "The article touched on the topic of climate change."

The best word to use will depend on the specific situation and what you want to emphasize.