Definition

1. Noun:
   • A unit of mass: "kg" is the standard abbreviation for the kilogram, the base unit of mass in the International System of Units (SI). It is equal to one thousand grams.

Usage

• "Kg" is used as a symbol following a numerical value to indicate mass.
  • The suitcase weighed 23 kg.
  • I need to buy 5 kg of rice.
  • The baby's birth weight was 3.5 kg.

Advanced Usage

• In scientific and technical contexts, "kg" is the universally recognized symbol. It is often used in compound units.
  • The force was measured in newtons (N), where 1 N = 1 kg·m/s².
  • The density of water is about 1000 kg per cubic meter.

Variants and Related Words

• Kilogram (n): The full word for the unit. "Kg" is its symbol.
  • The package must not exceed 30 kilograms.
• Gram (g) (n): A unit of mass equal to one-thousandth of a kilogram.
  • The recipe calls for 250 grams of flour.

Synonyms

• Kilogram: The full term for the same unit.
• Kilo: A common informal shortening for "kilogram" in spoken English.
  • I lost two kilos last month.

Notes on Meaning

• Mass vs. Weight: In scientific terms, the kilogram (kg) is a unit of mass, which measures the amount of matter in an object. In everyday language, people often use "kg" when talking about "weight," which is the force of gravity on that mass. The distinction is usually unimportant for general communication.
  • (Scientific) The object has a mass of 10 kg.
  • (Everyday) My weight is 70 kg.

Noun

1. one thousand grams; the basic unit of mass adopted under the Systeme International d'Unites
   • a kilogram is approximately 2.2 pounds