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Line breaks: lus|trum
Pronunciation: /ˈlʌstrəm

Definition of lustrum in English:

noun (plural lustra /-trə/ or lustrums)

chiefly literary or historical
A period of five years.
Example sentences
  • The book is dedicated to Nygren's wife Irmgard "in thankfulness for seven lustrums of theological cooperation."
  • 37 years ago my first secretary was a lady who has remained my friend for nearly 8 lustrums (4 decades) and today is a leading lady lawyer in Los Angeles who has never lost a case in court.


late 16th century: from Latin, originally denoting a purificatory sacrifice after a quinquennial census.

Words that rhyme with lustrum


Definition of lustrum in:

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Word of the day interfuse
Pronunciation: ɪntəˈfjuːz
join or mix (two or more things) together