笔墨纸砚 bǐmòzhǐyàn four treasures of the study Origin Definitions Defs Strokes Stroke Words Sentences Sents 笔墨 筆墨 bǐmò pen and ink pen and ink; refers to the tools used for writing or painting纸 紙 zhǐ noun paper paper; sheet of paper; usually made from plant fibers for writing, drawing, or wrapping砚 硯 yàn inkstone (bound form) inkstone; a stone slab used for grinding ink, such as in 砚台 yàntai