quin·quen·ni·al

[kwin-kwen-ee-uhl, kwing-]
adjective
1.
of or lasting for five years.
2.
occurring every five years.
noun
3.
something that occurs every five years.
4.
a fifth anniversary.
5.
a five-year term in office.
6.
a quinquennium.
00:10
Quinquennial is always a great word to know.
So is flibbertigibbet. Does it mean:
a chattering or flighty, light-headed person.
an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle.

Origin:
1425–75; late Middle English < Latin quīnquenni(s) of five years + -al1

quin·quen·ni·al·ly, adverb
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
Cite This Source Link To quinquennial
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World English Dictionary
quinquennial (kwɪnˈkwɛnɪəl) [Click for IPA pronunciation guide]
 
adj
1.  occurring once every five years or over a period of five years
 
n
2.  another word for quinquennium
3.  a fifth anniversary
 
quin'quennially
 
adv

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Example sentences
They supplement the quinquennial economic census, providing crucial information about the dynamic economy.
Since that time, governments' data collection has expanded to include a quinquennial census and numerous surveys.
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