# Elasticsearch single word similarity

**URL:** <https://discuss.elastic.co/t/elasticsearch-single-word-similarity/103710>\
**Category:** Elasticsearch\
**Created:** [October 12, 2017, 11:25am UTC](https://discuss.elastic.co/t/elasticsearch-single-word-similarity/103710 "2017-10-12T11:25:32Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![asd](https://avatars.discourse-cdn.com/v4/letter/a/c68b51/32.png) [@asd](https://discuss.elastic.co/u/asd)\
**Post date:** [October 12, 2017, 11:25am UTC](https://discuss.elastic.co/t/elasticsearch-single-word-similarity/103710/1 "2017-10-12T11:25:33Z")

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What are the options for single word similarity check?

Consider the following case: we have documents where field email is present. When new document is added we want to check if there are any documents where email is similar to the new one with some similarity constraint - for example 80% match.

Are there any specific built in queries which can be used?

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<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [November 9, 2017, 11:25am UTC](https://discuss.elastic.co/t/elasticsearch-single-word-similarity/103710/2 "2017-11-09T11:25:55Z")

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