In Thailand, a university provides a four-year standard higher education. A college is either:

1. a specific school for a specific profession such as the Irrigation College, now partially absorbed into Faculty of Engineering, Kasetsart University; or the Teaching Colleges, nowadays restructured into the Rajabhat University System. There are some technical colleges still standing, but many are already absorbed or restructured because our academic system does not really favor single-discipline schools standing around
2. a single school in a university or a specific organizational unit (such as the Mahidol University International College)
3. a two-year college (community college system)
4. it's also just how some secondary schools are named, such as Bangkok Christian College (which is a higher secondary school for boys)

In our language, if you are going to take a four-year higher ed program, you always say university not college.