pinyin: dī, an ethnic minority in the west of ancient China; another pinyin of it is dǐ, means foundation.


Examples:
低
pinyin: dī; antonym of "高", means low.
Chinese phrase: 低头 dī tóu - lower one's head
低地 dī dì - lowland

抵
pinyin: dǐ; meaning: support, sustain
Chinese phrase: 抵挡 dǐ dǎng - withstand
抵达 dǐ dá - reach

底
pinyin: dǐ; meaning: bottom
Chinese phrase: 海底 hǎi dǐ - the bottom of the sea
月底 yuè dǐ - the end of a month