As the name suggests, synonyms can be used to being up search results for non text matches that can help in improving the search experience . Here are a few examples.
- Unidirectional synonyms – For example if the search query “tablet” doesn’t bring up search results, you can say tablet is a unidirectional synonym for ipad, microsoft surface. unidirectional synonym is a one way relation.
- Bidirectional synonyms– If “recycling” is a bidirectional synonym to “dump,” you get hits for “dump” when searching for “recycling”, and hits for “recycling” when searching for “dump”. Bidirectional synonym is a two way relation.