Final answer:
A data dictionary is a reference used with standardized data that contains definitions, principles and guidelines, the values, format and synonyms for each data element.
Step-by-step explanation:
A reference used with standardized data that contains definitions, principles and guidelines, the values, format and synonyms for each data element is referred to as a: data dictionary.
A data dictionary provides a comprehensive overview of the data elements used in a system or database. It helps users understand the meaning and usage of each data element and ensures consistency and accuracy in data management and analysis.