Hello. Commencement is a graduation ceremony for all university students and a convocation is a graduation ceremony for a particular college, for example, the College of Chemistry. University students typically attend both of these ceremonies. How do you say "commencement" and "convocation" in Spanish? The Wordreference dictionary translates "commencement" as ceremonia de graduación. My guess for "convocation" is convocatoria, but I get the feeling this is wrong. Thanks in advance.