COLQ, which stands for "cost of living quotient," is a metric used to compare the cost of living between different cities or regions. Synonyms for COLQ include cost of living index, living expenses index, and cost of living benchmark. These terms all refer to the same concept and are commonly used by economists, policymakers, and individuals to assess the affordability of a particular location. By understanding the COLQ of a city, people can better plan their finances and make informed decisions when it comes to choosing where to live, work, or invest.