Undergraduate degree
In the United Kingdom, a bachelor's degree is the most common type of "undergraduate degree". Some master's degrees can be undertaken immediately after finishing secondary education; however, these courses are usually extended versions of bachelor's degree programs, taking an additional year to complete. Most bachelor's degrees take three years to complete, with some notable exceptions, such as Medicine taking five years. Often students can initially enroll in a 4-year program then leave after three years and be awarded a bachelor's degree.
Graduate diploma
A graduate diploma (GradD, GDip, GrDip, GradDip) is generally a qualification taken after completion of a first degree, although the level of study varies in different countries from being at the same level as the final year of a bachelor's degree to being at a level between a master's degree and a doctorate. In some countries the graduate diploma and postgraduate diploma are synonymous, while in others (particularly where the graduate diploma is at undergraduate degree level) the postgraduate diploma is a higher qualification.