Kha (ख) (खवर्ण khavarn) is the second consonant of the Devanagari abugida. It ultimately arose from the Brahmi letter , after having gone through the Gupta letter . Letters that derive from it are the Gujarati letter ખ, and the Modi letter �.
Devanagari-using languages 
In all languages, ख is pronounced as [kʰə] or [kʰ] when appropriate.
In this example, ख implements its inherent vowel, the schwa.
In this example, ख deletes the inherent schwa for correct pronunciation.
Certain words that have been borrowed from Persian and Arabic implement the nukta to more properly approximate the original word. It is then transliterated as a x.
Conjuncts with ख 
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Aryabhata used Devanagari letters for numbers, very similar to that of the Greeks, even after the invention of Indian numerals. The values of the different forms of ख are:
- ख [kə] = 2 (२)
- खि [kɪ] = 200 (२००)
- खु [kʊ] = 20,000 (२० ०००)
- खृ [kri] = 2,000,000 (२० ०० ०००)
- खॢ [klə] = 20×108 (२०८)
- खे [ke] = 20×1010 (२०१०)
- खै [kɛː] = 20×1012 (२०१२)
- खो [oː] = 20×1014 (२०१४)
- खौ [ɔː] = 20×1016 (२०१६)