The phrase "an expression of outrage" is correct and usable in written English.
It can be used when discussing feelings of anger or indignation in response to a particular event or situation.
Example: "The community's response was an expression of outrage over the recent policy changes that affected their rights."
Alternatives: "a display of anger" or "a manifestation of indignation."
But the law is an expression of outrage about harmful intervention in the state's campaign system.
Many Icelanders see Saturday's vote as an expression of outrage not just against foreign interference but also against Icelandic bankers.
While Mr Estrada's backers portrayed them as an expression of outrage by the downtrodden, Mrs Arroyo's accused the opposition of using the poor as "cannon fodder".
The movement to recall Persky is an expression of outrage, not just about one case but about a broader failure to acknowledge violence against young women and about the class and race privilege afforded to white male defendants.
Last week, 11 Western nations acted in unison to expel envoys from Syria in an expression of outrage over a massacre in the Houla region, near Homs, that left 108 people dead, including many women and children.
Michael B. Jordan's Oscar is a flawed human being trying to remain worthy of the love of his mother, daughter and fiancée, and the film is both a snapshot of American life and an expression of outrage.
For an expression of pure outrage, disgust and soul-damning ire when a nurse almost bumped into him with a pile of blankets.
In an expression of its outrage at what it considered unfair treatment, Newmont publicly highlighted the fact that Mr. Ness, a native of Minnesota, was barred from leaving Indonesia and could not attend the funeral of his granddaughter in the United States earlier this year.
The latest in the series of Proms cello concertos is a powerful new work from Charlotte Bray, an expression of 'moral outrage' at the destruction of the ancient city of Palmyra, Syria, last summer, after which 'everything changed' in the composer's compositional outlook.
Sartre's political critique conveyed in a series of essays, interviews and plays, especially The Condemned of Altona, once more combined a sense of structural exploitation (in this case, the institution of colonialism and its attendant racism) with an expression of moral outrage at the oppression of the Muslim population and the torture of captives by the French military.
