Bachelor's degree
A bachelor's degree (from Middle Latin "baccalaureus") or baccalaureate (from Modern Latin "baccalaureatus") is an undergraduate academic degree awarded by colleges and universities upon completion of a course of study lasting three to seven years (depending on institution and academic discipline). In some institutions and educational systems, some bachelor's degrees can only be taken as graduate or postgraduate degrees after a first degree has been completed. In countries with qualifications frameworks, bachelor's degrees are normally one of the major levels in the framework (sometimes two levels where non-honours and honours bachelor's degrees are considered separately), although some qualifications titled bachelor's degrees may be at other levels (e.g. MBBS) and some qualifications with non-bachelor's titles may be classified as bachelor's degrees (e.g. the Scottish MA and Canadian MD).
Propaedeutics
In the US, the equivalent of the propaedeutic diploma lies somewhere between an undergraduate certificate and an associate degree. Undergraduate certificates can be completed in as little as one semester (one-half of one academic year or about four months) and do not necessarily lead or contribute to any degree. Associate degrees (e.g. AA, AS) are typically earned after the first two years of the four- to five-year (in the US) course of study culminating in a baccalaureate degree; however, students matriculated in a bachelor's degree program are not usually awarded the associate degree en route (as is often the case when a doctoral student is awarded a master's degree en route). Additionally, there are first professional associate degrees (e.g. AAS, AGS) that do not necessarily lead or contribute to a bachelor's.