Definition of "anniversary" []

• The annually recurring date of a past event, especially one of historical, national, or personal importance: a wedding anniversary; the anniversary of the founding of Rome. (noun)
• A celebration commemorating such a date. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "The timing of this anniversary is another wonderful quirk in Michigan State's dream run to the national title game in 2009, that it would come exactly three decades after Magic and Bird changed the face of their game with their classic rivalry."
• "My contribution to the anniversary is an article where a dozen writers share their memories of the first time they saw Star Wars."
• "This anniversary is a fitting symbol of the great number of links between Ontario and the United Kingdom, links of tradition, of kinship, of trade and of way of life."