n.

A person who participates in a religious ceremony or rite.

A person who officiates at a religious or civil ceremony or rite, especially a wedding.

In some Christian churches, the cleric officiating at the celebration of the Eucharist.

A participant in a celebration.

Some Celebrants are ordained clergy, while others are Officiants empowered by the Humanist Association of Canada (HAC), the American Humanist Association (AHA), or the Society for Humanistic Judaism. (SHJ). In Australia, where Celebrants are commonly hired, they may be certified by any one of a number of Celebrancy training programs, while in the UK, most belong to one of a number of Humanist organizations, including the British Humanist Association and the Humanist Society of Scotland.

Celebrants may perform alternative and nontraditional ceremonies in places, and under circumstances where mainstream religious clergy will not. Some Celebrants perform same-sex weddings and commitment ceremonies. Celebrants, also called Officiants, often perform ceremonies in parks, on beaches, on mountains, on boats, on hiking trails, in hotels, in banquet halls, in private homes, and many other places.