noun, noun or participle which takes 'suru', intransitive verb
repeating a school year; staying back a grade
Used for students who must repeat a year of school or university because of insufficient credits or poor grades.
単位が足りなくて留年しそうだ。
I might have to repeat the year because I don't have enough credits.
留年すると学費がもう一年かかる。
If you repeat a year, you'll have to pay another year's tuition.