How to write 牍

牍 dú 名 1. 古代写字用的木片。 [En.] Wooden tablets or slips for writing in ancient times. 例: 文牍（公文）。尺牍（书信）。案牍。 2. 古代乐器名。 [En.] Name of an ancient musical instrument. 【引】 1. 《说文》：牍，书版也。长一尺，既书曰牍，未书曰椠。 [En.] "Shuowen": Dú, a writing board. One foot long, called "dú" when written on, and "jiàn" when blank. 2. 《史记·陈遵传》：与人尺牍。 [En.] "Records of the Grand Historian - Biography of Chen Zun": exchanged one foot of writing slips with someone. 3. 《史记·游侠原涉传》：削牍为疏。 注:“木简也。” [En.] "Records of the Grand Historian - Biography of Youxia Yuan": cut wooden slips into documents. Note: "Wood tablets." 4. 《史记·周勃传》：吏乃书牍背示之。 [En.] "Records of the Grand Historian - Biography of Zhou Bo": The official wrote on the back of the tablet to show it. 5. 杨修《答临淄侯笺》：握牍持笔。 [En.] Yang Xiu "Reply to the Marquis of Linzi": Holding the tablet and the pen. 【例】 如: 牍背（狱吏于书板背面书写文句。后用为遭受冤狱的典实） [En.] Example: Dú bèi (Prison officials wrote sentences on the back of the tablet. Later used as a reference for wrongful imprisonment.) 3. 引申为公文。 [En.] Extended to mean official documents. 例: 牍尾（文书的末端）；牍书（官署文书）。 4. 信件，通信者之间互相写的信。 [En.] Correspondence, letters written between correspondents. 例: 书牍；尺牍。 5. 书籍。 [En.] Book. 例: 史牍（史书）；牍籍（簿籍）；牍簿（簿书）。