Vocabulary What does 精度 (せいど) mean? 精度 (せいど) means precision, accuracy. Quick factsReadingせいどPart of speechnounLevel (estimated, JLPT framework)N1 精度せいどN1 · estimated, JLPT frameworkCommonprecision, accuracy1noun precision; accuracyKanji in this word精refinement, purity; spirit, energy度degree, extent; time, occasion; degree (measurement)