celebratory Definition

celebrate
verb celebrated, celebrating

1. To mark (an occasion, especially a birthday or anniversary) with festivities.

Thesaurus: observe, perform, keep, commemorate.
intr
2. To do something enjoyable to mark a happy occasion, anniversary, etc.

Thesaurus: rejoice, party, carouse, live it up (slang).
3. To give public praise or recognition to someone or something, eg in the form of a poem.

Thesaurus: praise, honour, toast, laud, extol, glorify, eulogize, publicize.
4. To conduct (a religious ceremony, eg a marriage or mass).

Derivative: celebration
noun

The commemoration of a special event with festivities
Thesaurus: recognition, commemoration, observance, remembrance, anniversary, keeping.

Derivative: celebrator
noun

Derivative: celebratory
adj

Etymology: 15c: from Latin celebrare, celebratum to honour, from celeber renowned.