The word "correlator" refers to a tool, device, or technique that helps in establishing a relationship between two or more variables or events. There are several synonyms for the word "correlator" such as "comparator," "co-relation," "associator," "linker," "integrator," and "reconciler." These synonyms are applicable in various fields and industries like sciences, statistics, engineering, and business. A "comparator" is a device that compares inputs and displays their respective outputs. "Co-relation" is the measurement of the degree of association or relationship between variables. "Associator" is a tool that consolidates data and links them for easy analysis. "Integrator" is a synonym for correlator that indicates that it combines different inputs into a single output, while a "reconciler" is a tool that finds differences and similarities between two sets of data.