Manganian is a word that is not frequently used in the English language. However, there are synonyms that can be used instead of this word. Some of the synonyms for manganian are Manganese oxide, Manganese dioxide, and Manganite. These words refer to compounds or minerals that contain manganese at different levels of oxidation. They can be used interchangeably with manganian to describe substances that contain manganese in different forms. Using synonyms can help to enhance vocabulary and make writing or communication more effective. Therefore, it is important to be familiar with different synonyms that can be used in place of less common words like manganian.