This is the 3166th most frequent Spanish word.
xi
"Xi" is not a standard Spanish word; it may refer to a letter or name in specific contexts.
In this example, 'xi' is used to denote a variable, which is common in mathematical and scientific contexts.
El término matemático incluye la variable 'xi'.
The mathematical term includes the variable 'xi'.
Here, 'xi' represents a phonetic sound observed in linguistic examples.
Algunas palabras en otros idiomas contienen el sonido 'xi'.
Some words in other languages contain the 'xi' sound.
Here, 'xi' is used as a noun referring to the specific Greek letter.