Grammes, a unit of measurement for mass, has several synonyms that can be used interchangeably. They include grams, g, gr, gramme, and gigagram. Gram is the abbreviated form of gramme and commonly used in the context of food and nutrition. Gr and gigagram, on the other hand, are less used synonyms, where gr refers to the same amount as the weight of a grain of wheat, and gigagram is equivalent to a billion grams. In general, the use of synonyms in writing helps to add variety and sophistication to a text while avoiding redundancy.