The phrase "a statement of defiance" is correct and usable in written English.
It can be used to describe a declaration or expression that shows resistance or opposition to authority or norms.
Example: "Her speech was a powerful statement of defiance against the unjust laws imposed by the government."
Alternatives: "an act of rebellion" or "a declaration of resistance".
For others, flying was a statement of defiance.
On stage in Stockholm tonight, the song becomes something altogether more optimistic: a statement of defiance.
From the wife of a billionaire oligarch (Igor Kesaev, who made his fortune in tobacco), this can be considered a statement of defiance.
This was, he explained, a statement of defiance, not a declaration of identity, but it hardly quelled the curiosity about his personal life.
For Giles, the lease was a statement of defiance in the face of 14 consecutive denied requests for federal funding to upgrade facilities at the port.
In such contexts, "It's all good" serves as a statement of defiance rather than complacency; things are clearly not all good, for example, if you happen to be Liberace.
Chronically late for class, he has taken to wearing pajamas to school, a statement of both defiance and apathy.
Bin Laden's changes turn a statement of general defiance into a direct threat, the point being that the attack on the World Trade Center and the Pentagon should be seen as the first of many.
Abbas Nasir, who contributes to the Pakistani newspaper Dawn, reported on Twitter that one girl in Swat made a bold statement of defiance in a live interview on a Pakistani television station on Thursday.
As readers of The Lede are well aware, zenga zenga, a phrase from an early statement of defiance by Colonel Qaddafi, has been remixed into an ironic anti-Qaddafi anthem by an Israeli musician and adopted by antigovernment protesters in Syria.
From the barracks of the Armed Police Force, which now serves as a detention center for those arrested during the protests, came a smuggled statement of defiance.
