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English definition of “unit”

unit

noun [C]  /ˈju·nɪt/ us  

unit noun [C] (SEPARATE PART)

a single item or a separate part of something larger: The first year of the course is divided into four units. This apartment building has 60 units (= separate apartments). A unit is also a small machine or part of a machine that has a particular purpose: the central processing unit of a computer A unit is also a piece of furniture or equipment used as part of a set of similar or matching pieces: a unit of a bookcase

unit noun [C] (PEOPLE)

a group of people living or working together, esp. for a particular purpose: a military unit He’s the surgeon in charge of the burn unit at the hospital.

unit noun [C] (MEASUREMENT)

a standard measure used to express amounts: An inch is a unit of length. The dollar is the standard unit of currency in the US.
(Definition of unit from the Cambridge Academic Content Dictionary © Cambridge University Press)
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