Hanja

traditional component of Chinese ideographs, used for indexing them in dictionaries

basic calligraphic component needed to draw CJKV characters used in East Asia

the traditional etymological classification of hanzi into 6 categories: pictographs (象形), ideograms (指事), semantic–semantic compounds (會意), phono-semantic compounds (形聲), phonetic loans (假借), “derivative cognates” (轉注)

South Korean set of Hanja characters to be taught in middle school and high school