Ancillary probate is a term used to describe the legal process of administering a deceased person's estate in a state other than their domicile. Apart from the term 'ancillary probate,' there are several other words or phrases used to describe this process. Some of these synonyms include 'ancillary administration,' 'supplementary probate,' 'ancillary estate,' 'foreign probate,' and 'secondary probate.' Essentially, all these words and phrases describe the same legal process that involves the distribution of a deceased person's assets in a state or country other than their primary residence. The term you choose to use may vary depending on the jurisdiction and legal context.