You might recognize the word Bachelor’s, (no, not the unmarried man) a bachelor’s degree! Students that are at university studying to get a bachelor’s degree, are called “undergraduates” or “undergrads”.
So, if you want to apply to a university after your secondary education you will be looking at undergraduate programs.
Depending on the country, university, or subject you can find programs from 2 years to 6 years, the first being accelerated degrees and the later usually have integrated masters.