different between anniversary vs quinquennial

English

Etymology

From Middle English anniversary, from Medieval Latin annivers?ria (di?s), annivers?rium, from annivers?rius (“yearly”), from annus (“year”) + vertere (“to turn”).

Pronunciation

• (UK) IPA^(key): /?æn??v??s(?)?i/
• (US) IPA^(key): /?æn??v?s(?)?i/, /?æn??v?s(?)?i/

Noun

anniversary (plural anniversaries)

1. A day that is an exact number of years (to the day) since a given significant event occurred. Often preceded by an ordinal number indicating the number of years.

   Today is the fiftieth anniversary of the end of the war.

   1. (especially) Such a day that commemorates a wedding.

      We are celebrating our tenth anniversary today.

2. (loosely) A day subsequent in time to a given event by some significant period other than a year (especially as prefixed by the amount of time in question).
   • 1984, ‘Never Mind the Tranquil Facade’, Time, 27 Feb 1984:

     The occasion was the six-month anniversary of the Aug. 8 coup that brought General Óscar Humberto Mejía Victores to power.

   • 2002, ‘Politics this Week’, The Economist, 14 Mar 2002:

     In a thinly veiled threat to Saddam Hussein, President George Bush marked the six-month anniversary of September 11th by reiterating America's commitment to prevent rogue countries obtaining weapons of mass destruction.

Synonyms

• yearday
• yeartide (rare, nonstandard)

Hyponyms

• birthday
• yahrzeit

Derived terms

• dateaversary
• meetaversary

Translations

English

Etymology

Borrowed from Latin qu?nquenn?lis, with some influence from qu?nquennium (“five-year period”).

Pronunciation

• IPA^(key): /kw???kw?.ni.?l/

Adjective

quinquennial (not comparable)

1. That happens every five years.
2. That lasts for five years.

Synonyms

• pentennial

Derived terms

• quinquennially

Translations

Noun

quinquennial (plural quinquennials)

1. A fifth anniversary.
2. A five-year period.