Plural of zero; the numeral 0 representing no amount or quantity; also can mean people or things of no importance.
From Italian 'zero,' derived from Arabic 'ṣifr' meaning empty. The word came to Europe through trade with the Islamic world, which had developed the concept of zero and the numeral system we still use.
The invention of zero was one of humanity's biggest intellectual leaps—without it, we couldn't have advanced mathematics, computing, or modern science, yet many ancient civilizations never developed this concept because it's surprisingly difficult to imagine 'nothing' as a number.
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