1. Niche:

   • Definition: A specialized area within a broader field of study.

   • Example: Her niche in the field of biology is molecular genetics.

2. Expertise:

   • Definition: Specialized knowledge or skills in a particular subject.

   • Example: Dr. Smith has extensive expertise in the field of astrophysics.

3. Focus:

   • Definition: The main area of attention or interest in research.

   • Example: The research project's focus is on renewable energy technologies.

4. Area of Concentration:

   • Definition: The specific subject or field a researcher specializes in.

   • Example: Environmental science is her area of concentration within the broader field of earth sciences.

5. Field of Specialization:

   • Definition: The specific field in which a researcher has acquired expertise.

   • Example: The professor's field of specialization is medieval history.

6. Subfield:

   • Definition: A specialized and distinct part within a broader academic discipline.

   • Example: Cognitive psychology is a subfield of psychology that focuses on mental processes.

7. Domain:

   • Definition: A territory or area of research expertise.

   • Example: Dr. Lee is renowned for her expertise in the domain of artificial intelligence.

8. Subject Matter:

   • Definition: The specific topic or subject studied within a research specialization.

   • Example: The subject matter of the research project is climate change and its impact on ecosystems.

9. Area of Expertise:

   • Definition: The field or topic in which someone is highly knowledgeable and skilled.

   • Example: The consultant's area of expertise is financial risk management.

10. Specialized Knowledge:

    • Definition: Advanced and specific knowledge acquired through focused study.

    • Example: The professor has a wealth of specialized knowledge in quantum mechanics.

11. Research Niche:

    • Definition: A unique and specialized area of research focus.

    • Example: The professor carved out a research niche in the field of marine biology.

12. Concentration:

    • Definition: The act of directing efforts and attention to a specific area of research.

    • Example: The student's concentration in the field of economics is macroeconomics.

13. In-Depth Study:

    • Definition: Thorough and comprehensive research conducted in a specialized area.

    • Example: The scholar conducted an in-depth study of ancient civilizations.

14. Research Area:

    • Definition: The specific aspect of a subject or field that a researcher investigates.

    • Example: The research area of interest is public health policies in developing countries.

15. Area of Inquiry:

    • Definition: The field of study that a researcher explores and investigates.

    • Example: The research project's area of inquiry is the impact of climate change on biodiversity.

Using these vocabulary words in your discussions and writing will demonstrate your ability to express ideas related to research specialization accurately and precisely. This will help you achieve a higher band score in the IELTS exam. Good luck with your studies!