Definition of Lustrum

a period of five years

Examples of Lustrum in a sentence

Being fifteen years old, I guess you could say I’ve been on this earth for three lustrums.  🔊

I’m glad we look at eras based on decades instead of lustrums, since it is more efficient to divide by ten than five.  🔊

Because Mr. Donier is an eccentric old man, he tells his ages in lustrums, so we always have to multiply the number he gives by five.  🔊

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