LUSTRUM /ˈlʌstɹəm/ Scrabble 9 Words With Friends 13 Scrabble letter values: L1U1S1T1R1U1M3 = 9 Definition noun a period of five years. noun a ceremonial purification of the Roman population every five years following the census. See all 29 words you can make from LUSTRUM → 7-letter words Words starting with L Words ending with M ← Unscramble different letters