noun, noun or participle which takes 'suru', transitive verb
small script; writing in small characters
Refers to text written in a small font or script, often used for annotations, footnotes, or compact writing. Can also be used as a suru-verb meaning 'to write in small characters'.
この辞書は小書きの注釈が多くて読みにくい。
This dictionary is hard to read because it has many annotations in small script.
余白にメモ
I write notes in small characters in the margin.