onum
Onum is not a widely recognized term in standard reference works, and there is no canonical definition across disciplines such as mathematics, linguistics, or information technology. In practice, onum typically appears as a proper noun—most often as the name of a specific organization, project, product, or fictional entity—where its meaning is defined solely by the source that uses it.
It can also occur as a misspelling or variant of related linguistic terms, especially those based on
If you are seeking a linguistic background, the term most closely associated with naming and labels is