The phrase "in some part" refers to a partial or limited extent or degree. There are several synonyms that can be used in place of "in some part" depending on the context of the sentence. For example, "partially" or "partly" can be used when referring to a partial extent. Similarly, "to some extent" or "to a degree" are synonymous phrases indicating a limited or incomplete extent. Additionally, "in part" can be used interchangeably with "in some part" to convey the same idea. Overall, there are several synonyms available for the phrase "in some part" which can be utilized to add variety and clarity to writing.