When it comes to describing your areas of expertise, there are several synonyms that can be used instead of "one's specialties". For instance, you can use professional strengths, areas of proficiency, expertise, fields of interest, particular skills, specialized knowledge, or core strengths. Each of these synonyms conveys a slightly different meaning, but all demonstrate that you have a particular skill set that sets you apart from others in your field. If you're applying for a job, it's important to highlight your strengths and abilities to show potential employers that you have the skills needed to succeed. Using different synonyms for "specialties" can help you stand out in a competitive job market.