noun, noun or participle which takes 'suru', transitive verb
writing in large letters; writing large
Refers to the act of writing characters in a large size, often for emphasis or clarity. Can be used as a noun or as a suru verb.
見出しを大書して目立たせた。
I wrote the headline in large letters to make it stand out.
ポスターにスローガンを大書する。
Write the slogan in large letters on the poster.