Adult education and Night school

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

Night school and adult education are semantically related. in continuing education topic. In some cases you can use "Night school" instead a noun phrase "Adult education".

Night school noun - A school that holds classes in the evenings for students who cannot attend during the day.

Adult education and night school are semantically related. Sometimes you can replace phrase "Adult education" with "Night school", this phrases are similar.