Birthday

1. a. Of or pertaining to the day of birth, or its anniversary; as, birthday gifts or festivities.
2. n. The day in which any person is born; day of origin or commencement.
3. n. The day of the month in which a person was born, in whatever succeeding year it may recur; the anniversary of one’s birth.

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.