There are many synonyms for the term "multiplier factor," which is often used in mathematics and economics to describe a number that is used to increase or decrease another quantity. Some common synonyms include multiplier, factor, coefficient, ratio, proportion, multiple, and scaling factor. Each of these terms may have a slightly different nuance or usage context, but all can refer to a number that is used to modify or amplify another quantity. Whether you're studying algebra, financial modeling, or statistical analysis, understanding these synonyms can help you communicate your ideas more effectively and accurately.