Broad match is the default matching option that SearchIQ uses. It lets a user query matches your posts/products whenever someone searches for that phrase, similar phrases, singular or plural forms, misspellings, synonyms, stemmings (such as floor and flooring), related searches, and other relevant variations. This option allows you to increase the coverage of your posts against user query but it also gives a chance for some not highly relevant posts and products to be shown. To migrate the irrelevancy issue, SearchIQ will rank the most relevant posts and products at the top of the result. Some of our users use this option along with field weight specified. This gives them better control the ranking of the matched posts/products.