Being familiar with something means having knowledge or understanding of it. Synonyms for this phrase include acquainted with, conversant with, knowledgeable about, well-versed in, experienced in, proficient in, well-acquainted with, versed in, and skilled in. These synonyms can be used interchangeably in different contexts to convey the same meaning. For instance, one can say "I am well-acquainted with the history of this place" instead of "I am familiar with the history of this place". In conclusion, using synonyms for familiar with not only diversifies language but also allows for more flexibility in communication and expression.