"Gotten to know" is a phrase used to describe the process of becoming acquainted with someone or something on a personal level. There are several synonyms for this phrase that can be used interchangeably, such as familiarized, acquainted, informally acquainted, met, had acquaintance with, and developed a relationship with. Each of these synonyms conveys a slightly different nuance, but all share the same basic meaning of getting to know someone or something better. By using one of these synonyms in place of "gotten to know," you can add variety and interest to your writing or conversation while still conveying the same essential idea.