Yin
WordNet
noun
(1) The dark negative feminine principle in Chinese dualistic cosmology
"The interaction of yin and yang maintains the harmony of the universe"
WiktionaryText
Noun
yin
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Pinyin syllable
yin
- A transliteration of any of a number of Chinese characters properly represented as having one of four tones, yīn, yín, yǐn, or yìn.
Usage notes
English transcriptions of Chinese speech often fail to distinguish between the critical tonal differences employed in the Chinese language, using words such as this one without the appropriate indication of tone.