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Tertiary education, also referred to as third-level, third-stage or post-secondary education, is the educational level following the completion of secondary education. The World Bank, for example, defines tertiary education as including universities as well as trade schools and colleges.[1] Higher education is taken to include undergraduate and postgraduate education, while vocational education beyond secondary education is known as further education in the United Kingdom, or included under the category of continuing education in the United States.

Tertiary education generally culminates in the receipt of certificates, diplomas, or academic degrees.

UNESCO stated that tertiary education focuses on learning endeavors in specialized fields. It includes academic and higher vocational education.[2]
https://en.wikipedia.org/wiki/Tertiary_education

it often sounds this way: https://www.monash.edu/study/courses/find-a-course/2022/laws...
The Law on Higher Education (2002) establishes a three-level structure of higher education: incomplete, basic, and complete educational levels https://en.wikipedia.org/wiki/Higher_education_in_Ukraine