unit

noun

• 1an individual thing or person regarded as single and complete but which can also form an individual component of a larger or more complex whole:the family unit large areas of land made up of smaller units the sentence as a unit of grammar
• a device that has a specified function, especially one forming part of a complex mechanism:the gearbox and transmission unit
• a piece of furniture or equipment for fitting with others like it or made of complementary parts:a sink unit
• a self-contained section of accommodations in a larger building or group of buildings:one- and two-bedroom units
• a part of an institution such as a hospital having a special function:the intensive care unit
• a subdivision of a larger military grouping:he returned to Germany with his unit
• an amount of educational instruction, typically determined by the number of hours spent in class:students take three compulsory core units
• an item manufactured: [as modifier]:unit cost
• a police car:he eased into his unit and flicked the siren on

• 2a quantity chosen as a standard in terms of which other quantities may be expressed:a unit of measurement fifty units of electricity

• 3the number one.
• (units) the digit before the decimal point in decimal notation, representing an integer less than ten.