Hello Srutika,

An undergraduate degree generally means a bachelor's degree (B.S., B.A., etc): a degree requiring about four years of university-level study beyond high school.

A graduate degree or post-graduate degree is any higher degree that has a bachelor's degree as a prerequisite, such as a masters or doctoral degree (M.S., M.A., M.F.A., M.B.A,. Ph.D., etc.) Depending on context, this term may also include professional degrees (J.D. for law, M.D. for medicine, D.D.S. for dentistry, D.V.M. for veterinary medicine, etc).

An undergraduate student (or simply an undergraduate, or colloquially, an undergrad) is a student who does not yet have an undergraduate degree, but is studying to earn one.

A graduate student or post-graduate student (or colloquially, a grad student) is a student who already has an undergraduate degree and is studying to earn a graduate degree.

Hope this helps!