noun, noun or participle which takes 'suru', transitive verb, intransitive verb
supplementary lecture; extra class
Used in academic contexts for additional classes held to cover missed material or provide extra instruction. Can be used as a noun or with する to mean 'to hold/attend a supplementary lecture'.
休講になった分の補講が来週あります。
There will be a supplementary lecture next week for the canceled class.
試験前に補講
I had an extra class before the exam.