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Definitions

zero

[zeer-oh] / ˈzɪər oʊ /


Frequently Asked Questions

What is another word for zero?
In math and more generally, something that has the value of zero can be described as null, as in null set and The value is null.  The word cipher was once used as another name for zero. Sometimes, the term goose egg is used as an informal way to refer to zero, especially in the context of a score, as in I scored a big ol’ goose egg on that round. Zero is commonly used in a general way to mean none or nothing. Synonyms for this sense of the word include nil, naught, nought, and aught. Sometimes the word no can be used to mean the same thing as zero, as in We lowered the price but we had no offers—and I mean zero offers.  More informal synonyms for zero in the sense of nothing include zip, zippo, zilch, nada (the Spanish word for “nothing”), diddly, and diddly-squat. The word zero can also be used as a verb meaning “to reduce to zero.” The verb phrase zero out is more commonly used, as in Zero out these totals.  Sometimes, the word zero is used to refer to a person considered completely insignificant, as in They went from zeroes to heroes. Similar words include nobody and loser, but calling someone (or yourself) any of these names is never a nice thing to say.
Where does zero come from?
The concept of zero is ancient, with recorded use dating back to ancient Mesopotamia. The word zero has been used in English since at least the 16th century. It comes from Italian, from the Medieval Latin word ​​zephirum, from the Arabic sifr, meaning “empty” or “zero.” The word cipher comes from this same Arabic root, which is a translation of the Sanskrit word śūnyā, meaning “empty.”
How do you use zero in a sentence?
Zero can be used as a noun, an adjective, and even a verb. Here are some examples of zero in a sentence:
  • Four minus four is zero. 
  • The temperature is expected to drop below zero.
  • If we don’t play, the chance of us winning is zero.
  • The school had a zero tolerance policy on bullying.
  • Please zero these columns by removing all the values.

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

"It's really fun to be floating around" in zero gravity, he added.

From Barron's • Apr. 3, 2026

The Esses - perhaps the most technically demanding piece of racetrack on the planet - was designated a "zero kilowatt zone", where teams could deploy no electrical energy.

From BBC • Apr. 3, 2026

Federal Reserve Chair Jerome Powell said the break-even rate could even be zero — or lower.

From MarketWatch • Apr. 2, 2026

Orion’s passengers— astronauts External link Reid Wiseman, Victor Glover, Christina Koch, and Jeremy Hansen—reached orbit only minutes after t-minus zero.

From Barron's • Apr. 2, 2026

His name was Arman and I have zero memories of him.

From "Everything Sad Is Untrue" by Daniel Nayeri