Which term refers to the act of admitting or being admitted into a group, such as a college?

The term that specifically refers to the act of being admitted into a group, particularly in the context of educational institutions like colleges, is "matriculate." This term encompasses both the processes of enrollment and formally entering into a program of study at an institution. When a student matriculates, they not only register for classes but also complete any necessary admissions requirements, which signifies their acceptance into a particular academic community.

Understanding this concept helps to clarify educational jargon. While "enroll" is closely related and describes the action of signing up for classes, "matriculate" carries a formal connotation of admission and acceptance into the institution itself. "Cohort," on the other hand, typically refers to a group of students who are progressing through a program together, while "affiliation" generally indicates a broader association or connection with an organization rather than a specific admission process. Thus, "matriculate" is the most accurate term in this context.