Can I use these words for decimals like 0.1 reading?
2 Answers
For decimals, the only generally accepted way to read "." is "point"—it is the decimal point, after all, not the decimal dot.
That said, things aren't as clear cut for numbers that look like decimals, but use the period as a separator rather than a decimal point. For example, "Web 2.0" or "Section 3.2.1". In these cases, it seems both are acceptable. According to ZDNet's article, both tend to be used.
'Dot' is not used. 'Point' is the English word for the decimal point.
You could say that number as one of:
'Nought point one', 'Point one' or 'Zero point one'.
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1"Dot" is sometimes used, when speaking the term in the US. It's up to the speaker to decide which to use in informal settings. Commented Mar 31, 2018 at 12:23