The phrase "a conviction about" is correct and usable in written English.
It can be used when expressing a strong belief or opinion regarding a particular subject or issue.
Example: "She has a conviction about the importance of environmental conservation and actively advocates for sustainable practices."
Alternatives: "a belief in" or "a strong opinion on".
They were driven by a conviction about what had to be done to make their parties succeed.
Of course it was not just a conviction about their inevitability that drove U.S. policy toward these dictators.
As his soldiers were impressing horses, Wilder learned he and Rosecrans shared a conviction about the superiority of another transformative innovation: the repeating rifle.
You heard the South Korean President -- he's got a conviction about the need to fight terror, so do other world leaders.
Mr. McLaughlin said that the archbishop disagreed with his opposition to school vouchers, but that they shared a conviction about the need to help the poor and immigrants.
When my editor brought up the idea for a book collecting the stories of the unemployed - for some writer somewhere - I persuaded him the commission was mine because I was seized with a conviction about the project.
Wills Manley: My approach was created when I realized that having a very strong conviction regarding an obscure security was much easier than having a strong conviction about a broad market movement.
At Felix Capital we have a high conviction about a new era of consumerization of enterprise software," he says.
Equally, however, there's a genuine conviction about its contents, a huge advance both on its predecessor and their legion of imitators.
Simple truth is, I haven't got a mandate to change it, or a burning conviction about doing so.
THE WORD "religion" is often used, rather effectively, to demonise a category of people who hold a strong conviction about something and propose to translate that belief into action.
