The phrase "a separate appearance" is correct and usable in written English.
It can be used when referring to an instance or event that is distinct from others, often in contexts like legal matters, performances, or presentations.
Example: "The defendant was required to make a separate appearance in court to address the new charges."
Alternatives: "an individual appearance" or "a distinct appearance".
At a separate appearance, Police Commissioner Raymond W. Kelly said the department was investigating.
But in a separate appearance on CBS's "Early Show," Mr. Perry would not commit to any other debates.
In a separate appearance on the ABC News program "This Week," Mr. Ryan declined to say whether that was true.
House Speaker Paul Ryan, in a separate appearance shortly after Comey's comments, tried to define downward what the President is expected to understand about the law.
Once the cameras were rolling, it quickly became clear that Behan - seen above in a separate appearance on Canadian TV - was incomprehensibly flootered.
In a separate appearance, Defense Secretary Donald H. Rumsfeld said: "There's no question but that there have been and are today senior Al Qaeda leaders in Iran.
The BBC declined to comment on whether Clarkson's suspension, if it were still in force, would cover an appearance on a separate show.
The closest we came was a rather awkward broadcast in which Israeli Channel 2 was switching directly from an interview with Yitzhak Herzog who was in the studio to a second, separate appearance by Mr Netanyahu, who was joining by video-link.
And as consumers of this content, we should make an effort to separate appearance from reality.
In a separate public appearance, the deputy prime minister, Warren Truss, took aim at older Australians who squandered their superannuation on luxury items and holidays.
Meanwhile, in a separate TV appearance, his running mate, Paul Ryan, was attempting to make the claim that he is better versed in foreign policy matters than Obama was four years ago, by virtue of Ryan's longer public service record in Washington.
