Noun
The condition of being heteronyms; the relationship between two words with different meanings and either the same spelling or the same pronunciation but not both.
The unrelatedness of words for items that are related by being members of a single category.
(by extension) Dissimilarity of people in a single group.
The use of multiple names for a single person or thing; polyonymy
A single word or symbol that can have different but related meanings.
Resulting from the actions of multiple or external causal agents.
Source: en.wiktionary.org