Kata bahasa Indonesia
English word
HYPHEN
WORDNET DICTIONARY
CIDE DICTIONARY
OXFORD DICTIONARY
Link, Gadget and Share 
WORDNET DICTIONARY
Noun lustrum has 2 senses
- lustrum(n = noun.time) - a period of five years; is a kind of period, period of time, time period
- lustrum(n = noun.act) - a ceremonial purification of the Roman population every five years following the census; is a kind of ceremony
Derived form verb lustrate1
CIDE DICTIONARY
lustrum, n. [L. Cf. 2d & 3d Luster.].
A lustration or purification, especially the purification of the whole Roman people, which was made by the censors once in five years. [1913 Webster]
OXFORD DICTIONARY
lustrum, n. (pl. lustra or lustrums) a period of five years.
Etymology
L, an orig. purificatory sacrifice after a quinquennial census