Milligrammes are a unit of measurement used to quantify small quantities of a substance. Synonyms for milligrammes include milligrams, mg, and milli. Other terms that can be used as synonyms for milligrammes include micrograms, which are even smaller measurements, and centigrams, which represent larger quantities. Additionally, some dialects or regions may use variations of these terms, such as milligrams being referred to as "millies" or micrograms being called "mics." Understanding the various synonyms for milligrammes is important in fields such as medicine, chemistry, and engineering, where precise measurements and accuracy are critical.