A21K

Zero

UK /["/ˈzɪərəʊ/"]/US /["/ˈzɪrəʊ/"]/

Definition

The numerical symbol representing no quantity or value.

In simple words: The number 0.

Examples

  • Five, four, three, two, one, zero… We have lift-off.
  • It was ten degrees below zero last night *(= −10°C)*.
  • The thermometer had fallen to zero.
  • I rated my chances as zero.
  • zero inflation

Usage notes

Used in mathematics to represent nothing or no quantity. It can also suggest a starting point in various contexts but should not be used in formal contexts when discussing negative outcomes or failures.

Grammar pattern

standalone number

Memory hint

Think of a 'zero' as an empty balloon.

Collocations

  • zero tolerance
  • zero degree
  • zero sum

Synonyms

  • none
  • naught
  • nil

Antonyms

  • full
  • total

Common mistakes

  • Confusing 'zero' with 'none' — they have different contexts.
  • Using 'zero' in phrases that require positive quantities.
  • Pronouncing 'zero' incorrectly, especially as 'zero' or 'zeero'.