Specialises is a verb that refers to the act of focusing or concentrating on a particular subject, activity or skill. There are various synonyms that can be used interchangeably with the word specialises, including specializes, concentrates, focuses, hones, devotes, and specializes in. All these synonyms connote the idea of narrowing down one's skills or expertise to a specific area, thereby becoming an expert or specialist in it. Other related words that can be used in place of specialises include excels, dominates, leads, masters, and perfects. Depending on the context in which it is used, the choice of synonym may vary.