Lustrum
7 lettersnounrareUpdated June 2026
Definition
A period of five years, derived from the ancient Roman purification ceremony performed at five-yearly intervals.
“The architect scheduled a full structural review at the end of each lustrum.”
Pronunciation
Syllables
lus·trum
Related Words
Synonyms
quinquenniumfive-year period
Word Game Tips
🟩
Wordle
Ends in the unusual -RUM cluster and the LUST- root may mislead guessers unfamiliar with the real meaning
🔤
Scrabble
M at the end scores two points and works well on a double-letter square, with -RUM endings being rare on the board
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