Graduate = above 4 years aka bachelors degree, so graduate degrees mean masters and doctorates, a phD. Juris Doctor (law) being an example of one of those. One you’ll be super familiar with is Doctor of Medicine.

Even though we call our doctors who make us better when sick, anyone who earns the degree levels of doctorate earns the title Dr. So this will be common to call a few of your college professors who hold a doctorate phD level education, “Dr X” instead of Mr/Mrs.

Undergraduate = associates (2 year) or bachelors (4 year).

Note despite years listed that’s the intended length, you could take 5 years to get your bachelors if you’re slower at doing such as if you have to take remedial classes, development education, classes to make you up to par as to what is expected of someone who is a college level student (these don’t give college credit towards the degree! But help a ton if you need them)