xi

word

/ˈʃi/
/ɹˌəʊmən ɪlˈɛvən/

Definition

‘Xi’ is the fourteenth letter of the Greek alphabet, represented as Ξ (uppercase) or ξ (lowercase), and is used in mathematics, science, and for Greek words.

Usage & Nuances

'Xi' is mainly used in technical, academic, or scientific contexts, often in mathematics and physics as a symbol, and rarely used in everyday conversation outside these areas. Pronounced 'zai' or 'ksai' in English.

Example Sentences

In physics, xi stands for a certain variable.

basic

You often see xi in scientific papers.

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The fourteenth letter of the Greek alphabet is xi.

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The symbol xi is used in mathematics.

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The professor wrote xi on the board along with other Greek letters.

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Don't confuse xi with the Greek letter chi; they look different.

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