The term "divisioner" refers to individuals involved in the act of dividing or partitioning something. However, there are several synonyms that can be used interchangeably to describe them. One such synonym is "divider". This word emphasizes their role in separating or splitting objects or groups. Another synonym is "segregator", which highlights their function of segregating or categorizing elements. Additionally, the term "partitioner" can be used to refer to individuals who divide or separate items into distinct parts. Lastly, the word "segmenter" can be employed to describe those who create segments or sections within a whole. Overall, these synonyms provide alternative ways to describe individuals engaged in the act of divisioning.