Thanks for the latin!

I'd only heard reification in the context of data modelling, where it's often meant to model the meta-model.

For example, RDF reification. RFD involves statements in the triple form (subject, predicate, object). The triple (Mary, enrolled, UCSF) corresponds to the statement that "Mary is enrolled at UCSF". A reification might be to turn that statement into a subject, and to make a statement about the statement. Eg. ((Mary, enrolled, USCF), created, 2018-12-06) - the statement that Mary is enrolled at USCF was created on 2018-12-06.