Relative molecular mass is a commonly known scientific term that describes the mass of a molecule relative to the mass of a carbon-12 atom. However, there are several synonyms available for the term relative molecular mass that can be used interchangeably, depending on the context and audience. Some synonyms for this term include molecular weight, molecular mass, and molecular formula weight. These terms often have slightly different variations of meanings, but they all refer to the same concept of the mass of a molecule. To use these synonyms effectively, it is important to understand the context in which they are being used and their variations in meaning.