Text Search Languages¶

The text index and the $text operator supports the following languages:

Changed in version 2.6: MongoDB introduces version 2 of the text search feature. With version 2, text search feature supports using the two-letter language codes defined in ISO 639-1. Version 1 of text search only supported the long form of each language name.

Changed in version 3.2: MongoDB Enterprise includes support for Arabic, Farsi (specifically Dari and Iranian Persian dialects), Urdu, Simplified Chinese, and Traditional Chinese. To support the new languages, the text search feature uses the three-letter language codes defined in ISO 636-3. To enable support for these languages, see Text Search with Basis Technology Rosette Linguistics Platform.

Language Name	ISO 639-1 (Two letter codes)	ISO 636-3 (Three letter codes)	RLP names (Three letter codes)
`danish`	`da`
`dutch`	`nl`
`english`	`en`
`finnish`	`fi`
`french`	`fr`
`german`	`de`
`hungarian`	`hu`
`italian`	`it`
`norwegian`	`nb`
`portuguese`	`pt`
`romanian`	`ro`
`russian`	`ru`
`spanish`	`es`
`swedish`	`sv`
`turkish`	`tr`
`arabic`		`ara`
`dari`		`prs`
`iranian persian`		`pes`
`urdu`		`urd`
`simplified chinese` or `hans`			`zhs`
`traditional chinese` or `hant`			`zht`

Note

If you specify a language value of "none", then the text search uses simple tokenization with no list of stop words and no stemming.