Anniversary

1. a. Returning with the year, at a stated time; annual; yearly; as, an anniversary feast.
2. n. The annual return of the day on which any notable event took place, or is wont to be celebrated; as, the anniversary of the Declaration of Independence.
3. n. The day on which Mass is said yearly for the soul of a deceased person; the commemoration of some sacred event, as the dedication of a church or the consecration of a pope.

The word meanings were obtained from OPTED(The Online Plain Text English Dictionary), which is based on “The Project Gutenberg Etext of Webster’s Unabridged Dictionary” which is in turn based on the 1913 US Webster’s Unabridged Dictionary (See Project Gutenburg), as a text file.