use one thing for many purposes / work someone hard

to use one's head

writing, something written / a letter (written communication), an epistle / (archaic) study, scholarship (especially of classical Chinese) / a style of 家紋 (kamon, “family crest”)

the mon, an old currency / a unit of length for measuring the size of one's foot (from the way that the mon coins would be lined up and used as a kind of inch marker) / a character, a letter

(grammar) a sentence / writing, composition / a design or pattern as decoration / literature, learning, scholarship / elegance, refinement (especially of writing or wording)

a pattern, a design, especially one with diagonally crossing lines / a diagonal crossing / a flowery expression or turn of phrase / a plot, a scheme / a refrain or recurring phrase in a piece of music

text; writing; sentence

Kyūjitai form of 文献 (“literature; research materials; documents”)

diction; language

Synonym of 甲骨文字 (kōkotsu moji, “oracle bone script”)