Word: 底子 (dǐzi) 底子 dictionary entry dǐzi base; foundation; bottom Full dictionary entry for 底子 Example sentences using 底子 2 sentences, showing page 1 of 1. 他英语底子很好。 Tā Yīngyǔ dǐzi hěn hǎo. He has a solid foundation in English. 这双鞋的底子磨坏了。 Zhè shuāng xié de dǐzi mó huàile. The soles of these shoes are worn through.