lustra
Definition
- Noun:
- Plural of lustrum: "lustra" is the plural form of "lustrum," which refers to a period of five years. This term originates from ancient Rome, where a lustrum was a purification ceremony performed every five years, and the word came to signify the five-year interval itself.
Usage Examples
- Noun:
- The census was conducted every lustra to track population changes. (A five-year period used for official counting.)
- Over several lustra, the city underwent significant transformation. (Across multiple five-year intervals.)
- The company reviews its strategic plan every lustra. (Every five years.)
Advanced Usage
"per lustra": meaning "per five-year period."
- The treaty is renegotiated per lustra to ensure compliance. (Every five years.)
"lustra of service": referring to a five-year term of duty or employment.
- He completed three lustra of service in the military. (Fifteen years of service.)
Variants and Related Words
Lustrum (n): the singular form, meaning a five-year period.
- The project was completed within a single lustrum. (Within five years.)
Lustral (adj): relating to or used in purification, especially in ancient rituals.
- The lustral water was sprinkled during the ceremony. (Water used for purification.)
Lustrate (v): to purify by ritual washing or sacrifice.
- The priest would lustrate the temple annually. (Purify through ritual.)
Synonyms
- Five-year period: a duration of exactly five years.
- Quinquennium: a more formal term for a five-year span.
- Half-decade: an informal synonym for five years.
Related Idioms
"Every lustrum": occurring once every five years.
- The festival is held every lustrum to honor the founding of the city. (Every five-year cycle.)
"Lustrum of peace": a five-year period of tranquility.
- The region enjoyed a lustrum of peace after the treaty was signed. (A five-year period without conflict.)
Phrasal Verbs
(No phrasal verbs are associated with "lustra" or "lustrum," as they are nouns not used in verb phrases.)