celebration (n.)
- agape
- aspersion
- bacchanal
- bacchanalia
- banquet
- bat
- bender
- binge
- bout
- bust
- carousal
- carouse
- ceremonial
- ceremony
- circumcision
- commemoration
- commencement
- confession
- confirmation
- convocation
- cult
- cultism
- cultus
- debauch
- drunk
- elation
- escapade
- exercise
- exercises
- exultation
- feast
- festivity
- fete
- fling
- formal
- formalism
- formality
- frolic
- function
- gala
- graduation
- hoopla
- inaugural
- inauguration
- incense
- initiation
- invocation
- jag
- jubilance
- jubilation
- jubilee
- lark
- litany
- liturgics
- liturgiology
- liturgy
- lustration
- memorialization
- merriment
- merrymaking
- mummery
- observance
- observation
- office
- orgy
- party
- pax
- performance
- ploy
- potation
- processional
- randy
- rejoicing
- revel
- revelry
- rite
- ritual
- ritualism
- rituality
- ritualization
- sanctification
- service
- solemnity
- solemnization
- spree
- symbolism
- symposium
- tear
- toot
- treat
- triumph
- wassail
- whoopee