Types of Qualifications
An undergraduate degree is the first degree that you do at University and what you would apply for from 6th form or college. In the UK, undergraduate degrees tend to take 3-4 years to complete if you study full time.
Some terminology that you might hear associated with undergraduate degrees are:
BA - Bachelor of Arts, Humanities & Social Sciences
BSc - Bachelor of Science
MB - Bachelor of Medicine
BEng - Bachelor of Engineering
LLB - Bachelor of Law
These are all the same level of qualification, but they refer to the subjects and the area of study that you gained your qualification in.
Post graduate degrees are what you can go on to study once you have completed your undergraduate degree.
The first level of post graduate degrees is the Master's. This usually takes between 1-2 years to complete
Next is the Doctoral degree, which you may have heard called the PhD which stands for Doctor of Philosophy, but it can be in a range of subjects and doesn't mean that you have to study philosophy. Once you have your PhD, you get to use the title Dr. A PhD tends to take 3-8 years to complete