底儿 dǐ'er foundation Definitions Defs Origin Strokes Stroke Words Sentences Sents 底 dǐ nounlocative bottom The lowest part of an object or body of water; base; foundation儿 兒 r particleaffix [erhua suffix] A suffix attached to a word to form a retroflex ending, often indicating a small size, a sense of familiarity, or turning a word into a noun.
