Dictionary.com

lustrum

[ luhs-truhm ]
/ ˈlʌs trəm /
Save This Word!
See synonyms for: lustrum / lustra / lustrums on Thesaurus.com

noun, plural lus·trums, lus·tra [luhs-truh]. /ˈlʌs trə/.
a period of five years.
Roman History. a lustration or ceremonial purification of the people, performed every five years, after the taking of the census.
QUIZ
QUIZ YOURSELF ON "WAS" VS. "WERE"!
Were you ready for a quiz on this topic? Well, here it is! See how well you can differentiate between the uses of "was" vs. "were" in this quiz.
Question 1 of 7
“Was” is used for the indicative past tense of “to be,” and “were” is only used for the subjunctive past tense.

Origin of lustrum

First recorded in 1580–90; from Latin lūstrum; cf. luster1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use lustrum in a sentence

British Dictionary definitions for lustrum

lustrum

lustre

/ (ˈlʌstrəm) /

noun plural -trums or -tra (-trə)
a period of five years

Word Origin for lustrum

C16: from Latin: ceremony of purification, from lustrāre to brighten, purify
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
FEEDBACK