Chou Collection, Lower Volume Radical: Woman (nǚ) Gu (level tone) Page 270, Entry 33 Guangyun (Dictionary of Sounds and Meanings): Pronounced gu (level tone). Jiyun (Comprehensive Dictionary of Sounds and Meanings): Pronounced gu (level tone). Shuowen (Explaining Graphs and Analyzing Characters): To guarantee or take responsibility for. Liushutong (Unified Six Writings): In ancient times, when women committed minor crimes, they were not imprisoned but were held under the guarantee of others while awaiting sentencing. Boya (Erudite Expositions): Gu-tou means to be perfunctory or negligent.