say it: sel-uh-BRAY-shuhn
celebration is a noun meaning "a joyful occasion for special festivities to mark some happy event". It carries 3 recorded senses.
a joyful occasion for special festivities to mark some happy event
the public performance of a sacrament or solemn ceremony with all appropriate ritual
“the celebration of marriage”
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for celebration come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.