Establish oneself is a phrase used to refer to the process of becoming established or gaining a foothold in a particular field, industry, or community. There are several synonyms for the term, including: build a reputation, make a name for oneself, gain recognition, carve out a niche, earn credibility, and become established. These phrases all convey the idea of establishing oneself as a reliable and valuable member of a particular group. To establish oneself involves a combination of hard work, dedication, and perseverance, and is often a key factor in achieving success and recognition in one's chosen field or profession.