anniversary

an·ni·ver·sa·ry

noun \ˌa-nə-ˈvərs-rē, -ˈvər-sə-\

plural an·ni·ver·sa·ries

Definition of ANNIVERSARY

1

: the annual recurrence of a date marking a notable event; broadly : a date that follows such an event by a specified period of time measured in units other than years <the 6-month anniversary of the accident>

2

: the celebration of an anniversary

Examples of ANNIVERSARY

1. the anniversary of the invasion
2. The exhibit will close on the 100th anniversary of the artist's death.

Origin of ANNIVERSARY

Middle English anniversarie, from Medieval Latin anniversarium, from Latin, neuter of anniversarius returning annually, from annus year + versus, past participle of vertere to turn — more at annual, worth

First Known Use: 13th century

Other Calendar Terms

antedate, estival, gloaming, luster, sesquicentennial