Milli is a unit of measurement in the metric system, representing one-thousandth of a base unit. For example, one milliampere (mA) is equal to 0.001 amperes, which is commonly used in electrical measurements. The prefix "milli" is derived from the Latin word "mille," meaning thousand. In everyday life, milli can be found in various contexts, such as in measuring small quantities of liquids in milliliters (mL) or in the weight of substances in milligrams (mg). This makes it a useful term in fields like science, medicine, and cooking, where precision is important.