---
title: Disjunction query expression
slug: '190'
canonical_url: https://docs.coveo.com/en/190/
collection: glossary
source_format: adoc
---
# Disjunction query expression
The {doctitle} (`dq`) is a part of the combined [query](https://docs.coveo.com/en/231/) expression.
It's merged with the other expression parts using an `OR` Boolean operator.