"Castroite" is a term used to describe someone who is a follower or supporter of Cuban leader Fidel Castro. However, there are many synonyms for this word that can be used to convey a similar meaning. Some of these synonyms include communist, leftist, socialist, revolutionary, Marxist, and sympathizer. These words all indicate a political leaning towards the left and a support for socialist ideals. However, it is important to note that not all of these words carry the same connotations as "Castroite," which specifically refers to a supporter of Fidel Castro's particular brand of communism. Nonetheless, these synonyms can be useful in providing a broader range of language to discuss leftist ideologies.