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general::
noun of an important event ADJ. first, second, etc. VERB + ANNIVERSARY celebrate, commemorate, mark They held celebrations to mark the anniversary of Mozart's death. ANNIVERSARY + VERB be, fall The anniversary of the founding of the charity falls on 12th November. PREP. on an/the ~ on the 20th anniversary of his death of a wedding ADJ. first, second, etc. | wedding VERB + ANNIVERSARY celebrate PREP. on sb's ~ He bought her a diamond ring on their tenth wedding anniversary. PHRASES a diamond, golden, silver, etc. wedding anniversary
Oxford Collocations Dictionary