# Compound Word Token Filter

**URL:** <https://discuss.elastic.co/t/compound-word-token-filter/4856>\
**Category:** Elasticsearch\
**Created:** [July 14, 2011, 11:46am UTC](https://discuss.elastic.co/t/compound-word-token-filter/4856 "2011-07-14T11:46:23Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![nachiket](https://avatars.discourse-cdn.com/v4/letter/n/4491bb/32.png) [@nachiket](https://discuss.elastic.co/u/nachiket)\
**Post date:** [July 14, 2011, 11:46am UTC](https://discuss.elastic.co/t/compound-word-token-filter/4856/1 "2011-07-14T11:46:23Z")

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Hi.  
Is compound word token filter useful for foreign languages only or can  
be useful in English too?  
My application takes as an input a char sequence. My job is to  
understand the content. The content is mostly proper nouns though not  
necessarily. Can I build my own dictionary or something where I first  
check if the word is present and if not I could append it on  
dictionary?  
I have looked at Synonyms token filter. But I didn't understand where  
Compound Word token filter could be used.  
Can somebody help on this issue?

Regards.

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**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [July 6, 2017, 4:00am UTC](https://discuss.elastic.co/t/compound-word-token-filter/4856/2 "2017-07-06T04:00:40Z")

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