None (term)

In general knowledge, "None" refers to the absence of anything or the lack of a value. It is often used in surveys, forms, or data sets to indicate that a particular item or response is not applicable, does not exist, or is simply not provided. For example, if a survey asks for a favorite color and a respondent has no preference, they might choose "None," highlighting that there is no selection or answer relevant to the question. It helps clarify that an option is intentionally blank, rather than an oversight.