Refers to a person who officially grades or scores tests, exams, or performances. Often used in educational or competition contexts. The cross-reference 採点者 is a more general term for anyone who scores.
See also: 採点者
The exam grader must evaluate the answer sheets fairly.
Compound of 採点 (saiten, 'scoring') + 官 (kan, 'official'). The kanji 採 means 'pick' or 'gather', 点 means 'point' or 'mark', and 官 denotes an official or person in authority.