lustrum

Fetched 2026-10-26 (cache).

Datamuse reports no synonyms or antonyms for this word.

Noun

1. {{lb|en|historical}} A [[lustration]]: a [[ceremonial]] [[purification]] of the [[people]] of [[Rome]] [[perform]]ed [[every]] [[five]] [[year]]s after the [[census]]. {{defdate|from late 16th c.}}
2. {{lb|en|by extension|literary}} {{synonym of|en|quinquennium}}: [[any|Any]] [[5]]-[[year]] [[period]].

Source: Wiktionary · CC BY-SA 4.0 (Wiktionary dump) · cached copy, not a rewrite.