- to add the finishing touch(bound form) to paint in the pupils of eyes; to add a crucial stroke or the most important final touch to a work of writing or art that brings it to life
- 之 particle[possessive]Connects a describing word or phrase to the noun it describes, similar to 的 but used in formal or literary writing.
- 笔 筆 nounwriting style(bound form) technique or style of writing, calligraphy, or drawing