an individual thing or person regarded as single and complete but which can also form an individual component of a larger or more complex whole

large areas of land made up of smaller units

the sentence as a unit of grammar

the family unit

a device that has a specified function, especially one forming part of a complex mechanism

the gearbox and transmission unit

a quantity chosen as a standard in terms of which other quantities may be expressed

a unit of measurement

fifty units of electricity

the number one