Yi or YI may refer to:
In Chinese philosophy, yin and yang ( and ; Chinese: 陰陽 yīnyáng, lit. "dark-bright", "negative-positive") is a concept of dualism in ancient Chinese philosophy, describing how seemingly opposite or contrary forces may actually be complementary, interconnected, and interdependent in the natural world, and how they may give rise to each other as they interrelate to one another.
Yitzhak Rabin (; Hebrew: יִצְחָק רַבִּין, IPA: [jitsˈχak ʁaˈbin] (listen); 1 March 1922 – 4 November 1995) was an Israeli politician, statesman and general.
There are some Yiddish words used in English language context. An English sentence that uses these words sometimes is said to be in Yinglish (or Hebronics); however, the primary meaning of Yinglish is an anglicism used in Yiddish.
The yield point is the point on a stress–strain curve that indicates the limit of elastic behavior and the beginning plastic behavior.
In finance, the yield curve is a curve showing several yields or interest rates across different contract lengths (2 month, 2 year, 20 year, etc.