"celebratory speech" is a correct and usable phrase in written English.
It refers to a formal address or talk given during a celebration or special occasion. Example: The CEO gave a celebratory speech at the company's annual gala, highlighting the company's achievements and thanking its employees for their hard work and dedication.
The events capped off with Trump's roughly 45-minute, celebratory speech.
After commanding his players to gather round, the head coach roared his way through a celebratory speech.
President Galtieri, in a celebratory speech, said that the decision to seize the islands had arisen from "the necessity to put an end to the evasions of Great Britain in order to perpetuate its dominion over the islands and the zone of influence".
The following night on Raw, during Batista's celebratory speech, The Legacy attacked Batista, and injured him in storyline.
The hard-line newspaper Kayhan ran a banner headline — "Sanctions are back!" — nearly crowding out coverage of a celebratory speech by moderate Iranian President Hassan Rouhani.
Teams have their own ministers, games begin and end with a group prayer, and if "God" isn't the first thing mentioned in a post-game celebratory speech, it's in the top three.
Little digs — and not-so-little digs — were defiantly sprinkled into several of the celebratory speeches.
Champagne receptions and celebratory speeches were ditched to avoid seeming smug at a time of economic crisis.
But the organization typically ends the season with a gala benefit concert in which, after some celebratory speeches onstage, three recent winners of its international auditions play concertos.
The backdrop for the celebratory speeches was the drum beat of possible war with Iraq and the rift in the alliance over Germany's opposition to it.
By late morning, people in every town and city of the West Bank were raising Palestinian flags and making celebratory speeches in anticipation of the Palestinian Authority's new status as a nonmember observer state in the United Nations.
