1. the environment or community concerned with the pursuit of research, education, and scholarship
2. academic life or work; the activities and concerns of universities and colleges

Examples

• She left her job in business to pursue a career in academia.
• The research findings were well-received in academia but had little impact on policy.
• Many graduates struggle to find positions in academia due to limited openings.
• His work bridges the gap between academia and industry.
• The conference brought together experts from both academia and government.
• She spent twenty years in academia before retiring from the university.