The phrase "a single ceremony" is correct and usable in written English.
It can be used when referring to one specific event or occasion, often in the context of formal gatherings such as weddings, graduations, or award ceremonies.
Example: "The couple decided to have a single ceremony instead of a series of events to celebrate their union."
Alternatives: "one ceremony" or "a solitary ceremony".
In 1978, he married twenty-seven women in a single ceremony.
Now it's become common for the baptism to precipitate the wedding, and for them both to be celebrated in a single ceremony – a saving on cake.
After recovering from his injuries, he married 27 women in a single ceremony – saying they were jobless after Kalakuta's destruction so he would take care of them.
He naturally includes the famous occasion when Kuti married his 27 dancers and singers in a single ceremony (though only 10 are shown on stage "because we couldn't afford 27").
The result will be a single ceremony for graduates from all divisions and campuses.
The result was a single ceremony for graduates from all divisions and campuses.
3 58 p.m. | Updated LONDON — Between them, Michael Phelps and Natalie Coughlin have appeared in seven Olympics and not a single opening ceremony.
One Direction's victory in the fan-voted best video category robbed Adele of the opportunity to become the most-garlanded artist in a single Brits ceremony.
And because this Anthony H Wilson had been one of the most influential music industry figures of our time, there was a suitably eclectic soundtrack: Atmosphere by Joy Division and New Order's first single, Ceremony; Bob's Yer Uncle by the Happy Mondays; He Who Would Valiant Be by John Bunyan; and Hail Queen of Heaven, a traditional hymn Wilson would have sung often in his Catholic boyhood.
Every single ceremony begins and ends with music because music is a healing force, it is what allows us to grow and open ourselves as human beings.
Changing the date of the Academy Awards effects more than that single ceremony.
