Kilogram (noun)

1. The base unit of mass in the International System of Units (SI), equivalent to the mass of one liter of water.
2. A unit of weight equal to 1,000 grams, used especially in the metric system.

Origin:

The word "kilogram" is derived from the french word kilogramme, which was based on the greek word kilogramma, meaning "a thousand grams".

Examples:

1. A kilogram of sugar was needed for the recipe.
2. The scale measured the weight of the package in kilograms.
3. The gold bar weighed 5 kilograms.
4. She converted the pounds to kilograms to compare the weight.
5. The scientist measured the mass of the object in kilograms.