The phrase "a formal gathering" is correct and usable in written English.
It can be used to describe an event or meeting that is organized in a structured and official manner, often with specific protocols or dress codes.
Example: "The company will host a formal gathering to celebrate its anniversary, inviting all employees and stakeholders to attend."
Alternatives: "an official event" or "a ceremonial meeting".
Mr. Lew will join Mr. Obama on Saturday night for annual Alfalfa Club dinner, a formal gathering of Washington elites at which presidents traditionally speak.
It remains unclear, however, whether Edward was deposed in 1327 by a formal gathering of parliament or simply a gathering of the political classes alongside an existing parliament.
A formal gathering was held on September 27, 2003 at the Portland Armory to celebrate the launch of the magazine, and the magazine debuted September 29 , 2003
Despite being called by Commandant Alexei to attend a formal gathering at the imperial capital of Zaphias, Niren sends Flynn in his stead to attend the gathering and to request aid in defending the town.
A furry convention (also furry con or fur con) is a formal gathering of members of the furry fandom — people who are interested in the concept of fictional non-human characters with human characteristics.
A legal international document, granting oversight into accountability in all activity involving the Avengers, with ratification to take place at a formal gathering of world leaders in Vienna, Austria.
A cloud of tedium hangs over any formal gathering that ventures to discuss the thing.
A coven is a more formal gathering of people, and they are often closed to outsiders.
Basketball has its moment on Sept. 7 to 9 at the Naismith Memorial Basketball Hall of Fame in Springfield, Mass., where members including Charles Barkley, Joe Dumars and Dominique Wilkins will be inducted at a dinner and will later receive rings and answer questions at a less formal gathering.
Employees at USPS's Brentwood Mail Processing Facility, renamed in recent years as the Joseph P. Curseen and Thomas L. Morris Jr. Processing Facility, plan to meet early Friday and again at midday for a more formal gathering with Postal Service officials and other dignitaries.
It takes over as the center of the parties, with guys asking girls to play with them in the same manner as -- in another time -- men may have asked women to dance at a more formal gathering.
