He is the third in line.

One third of the students have chosen the option of studying abroad.

The Third World is facing many economic challenges.

She has a third-world approach to solving global issues.

Third-Worldism is a political movement that aims to promote the interests of third world countries.

The third-world activists are involved in humanitarian actions.

Third-worldisms are political and social movements that aim to improve the conditions of developing countries.

Third world countries need international assistance.

Third-party payer facilitates the reimbursement of medical expenses.

I just took out third-party insurance for my car.