XI

Eleven in numerals

Xi is the fourteenth letter of the Greek alphabet (Ξ, ξ), used in mathematics and science to represent various quantities.

In English contexts, xi appears mainly in technical writing or when discussing Greek: The variable xi denotes an unknown in the equation.

As a Roman numeral, XI represents eleven.

numeral

Roman

Of ancient Italy's capital

  • numeralSymbol denoting quantity
  • IXNine in numerals
  • VLetter for five

IV · II · I · L · C · D · M · notation · clock · chapter

Jinping

China

East Asian superpower

  • presidentElected leader of nation
  • leaderOne who guides others
  • CCPChina's sole political power

Beijing · chairman · PRC · Chinese · politics · governance · party · state · power · government

Categories
Opposites
numeral system

XI11

Number after ten

Arabic numerals · decimal notation

numerical value

XI0

Numeral for nothing

zero · I · nil · nothing

Phrases
Family

eleven

Familiarity
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Used worldwide · Timeless · Everyday, not technical · Rated G