Both can name the number 0, but “nought” is mainly British while “zero” is broadly standard and is the usual US form. This comparison is about the numeral 0; specialized readings such as “oh” in spoken numbers follow their own conventions.
ReviewedEvidence2 sourcesSectionEnglish Usage
Quick answer
Both can name the number 0, but “nought” is mainly British while “zero” is broadly standard and is the usual US form.
Key details
Confusion Familyregional vocabulary
Rule Familyvocabulary choice
Termszero, nought
Variant ScopeThis comparison is about the numeral 0; specialized readings such as “oh” in spoken numbers follow their own conventions.
Further guidance
Core difference
Both can name the number 0, but “nought” is mainly British while “zero” is broadly standard and is the usual US form.
Fast Test
Use “zero” for the broadly international/default term; “nought” is natural in British contexts where that regional wording is intended.
Usage Boundary
This comparison is about the numeral 0; specialized readings such as “oh” in spoken numbers follow their own conventions.
Sources and evidence
Sources are shown with the role they play in this guide. Historical or style-sensitive claims are kept within the evidence boundary described above.
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