This is the 9068th most frequent Japanese word.
減点
"減点" (げんてん) means "point deduction" or "loss of points."
In this sentence, '減点' refers to the action of deducting points from a score.
その試験では減点が多かった。
There were many point deductions on that exam.
Here, '減点' is used in passive form to imply that points are being subtracted due to errors.
ミスがあると減点されます。
Points are deducted if there are mistakes.
In this example, '減点' describes a system where the evaluation is done by deducting points.