In the USA, the number zero is written as 'zero'.
According to Alex Cortes, as mentioned in a response to a similar question last year, the standard way to write zero in the US is consistently using the term "zero." This is the established convention. In contrast, while "zero" is the primary term in the United Kingdom as well, the word 'naught' is sometimes still used, especially in northern dialects of Britain.
Here's a quick summary:
| Region | Standard Term | Alternate Term(s) |
|---|---|---|
| USA | zero | None |
| United Kingdom | zero | naught (some areas) |
The reference clearly indicates that in the United States, "zero" is the only accepted written form.
