anniversary

noun

an·​ni·​ver·​sa·​ry ˌa-nə-ˈvərs-rē 

-ˈvər-sə-

plural anniversaries

1

: the annual recurrence of a date marking a notable event

a wedding anniversary

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 in a Sentence

the anniversary of the invasion

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

Recent Examples on the Web

At the building’s peak, five-foot-tall concrete letters spell out a hundred and three words of a speech delivered by Obama in Selma, Alabama, in 2015, on the fiftieth anniversary of Bloody Sunday, when John Lewis and other civil-rights activists were beaten at the foot of the Edmund Pettus Bridge. —Peter Slevin, New Yorker, 4 May 2026

This year, the Rangers are celebrating the 30th anniversary of their 1996 team that won the American League West, and was the first to reach the playoffs. —Mac Engel may 3, Fort Worth Star-Telegram, 3 May 2026

Ronald Herrick, the healthy twin, marked the 50th anniversary of his brother's transplant with Murray in 2004. —Karen Weintraub, USA Today, 3 May 2026

At each stop, the arrival of the shoe-boat will be accompanied by moments of celebration with the local community, dedicated activations and events, as well as amplifying its anniversary capsule collection. —Stephen Garner, Footwear News, 3 May 2026

Word History

Etymology

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, in the meaning defined at sense 1

Rhymes for anniversary

• bursary
• cursory
• nursery

Kids Definition

anniversary

noun

an·​ni·​ver·​sa·​ry ˌan-ə-ˈvərs-(ə-)rē 

plural anniversaries

1

a

: the annual return of the date of a special event

b

: a date that follows such an event by a specified period of time

the 6-month anniversary of the accident

2

: the celebration of an anniversary

Etymology

Middle English anniversarie "anniversary," from Latin anniversarium (same meaning), literally "turning of the year," from annus "year" and versus "turned," from vertere "to turn" — related to converse, universe, versatile