The characters N/A (sometimes n/a) are an abbreviation that is mainly used in information tables. For the HTML tag see HTML element. An abbreviation (from Latin brevis "short" A table is both a mode of Visual communication and a means of arranging Data. It stands for one of the following:

• Not available: Where there exists a lack of data. It also means a temporary unavailability of that piece of data (although TBA or TBD is often used instead). The phrase "to be determined" is used to label variables whose value is not yet known (for example dates times or design details For example, in a price table, when new articles have arrived but the price is not yet available, it is usually expressed with n/a. In Microsoft Excel, the function NA() or special entry #N/A may be used.
• Not applicable: Where three or more elements are not compatible, it is said the resulting data is not applicable. For example, in a sport results table, where all teams are columns and rows, those cells which would show a team versus itself are usually marked with a symbol or with N/A.

• No answer: Refers to something that has no known or available answer.
• Not announced: As in the title isn't announced yet.
• Naturally aspirated: An internal combustion engine devoid of forced induction methods.
• Not assessed: Refers to the topic not being assessed.