The common logarithm, also known as the base 10 logarithm or decimal logarithm, is a mathematical function that measures the number of times 10 must be multiplied to equal a certain number. This relationship is denoted as log10, which is the standard notation for the common logarithm. However, there are other synonyms for the common logarithm. Some other terms used interchangeably with log10 include decadic logarithm, standard logarithm, Briggsian logarithm, and common antilogarithm. These synonyms do not alter the function or meaning of the common logarithm, but provide alternative ways to refer to it in mathematical or scientific contexts.