Jubilarian

n.joyful, resilientformal

What it means

A person celebrating a significant anniversary or jubilee.

Reach for it when naming an anniversary honoree in formal ceremonial writing

Each jubilarian received a letter recalling years of community service.

everyday
anniversary celebrant
clarity for a broad audience matters most
not when The phrase is longer and lacks jubilarian's ceremonial precision.
warm
guest of honor
the event centers on one recognized person
not when A guest of honor may be visiting rather than celebrating a milestone.
professional
honoree
someone is formally recognized at an event
not when Honoree covers any recognition and need not mark an anniversary.
professional
milestone honoree
service or tenure is being formally marked
not when Milestone honoree is modern administrative language, not a dictionary synonym.
formal
celebrant
the person actively observes a special occasion
not when Celebrant can mean an officiant and is not limited to jubilees.
formal
jubilee celebrant
the specific event should remain explicit
not when This phrase explains rather than elegantly names the role.

golden jubilarian
The golden jubilarian thanked colleagues from every decade of her service.
honored jubilarian
An honored jubilarian planted the anniversary tree.
fellow jubilarians
The fellow jubilarians shared photographs from their first year together.

Jubilarian is rare ceremonial vocabulary and may require explanation.

The definition and the example on this page are written here. The dictionaries above ground which meaning is being described, not the wording.