Adult education and Course of instruction

Adult education noun - A course (via lectures or correspondence) for adults who are not otherwise engaged in formal study.

Course of instruction and adult education are semantically related. In some cases you can use "Course of instruction" instead a noun phrase "Adult education".

Course of instruction noun - Education imparted in a series of lessons or meetings.

Adult education and course of instruction are semantically related. Sometimes you can replace phrase "Adult education" with "Course of instruction", this phrases are similar.