unit

noun

1. 1

   an assemblage of parts that is regarded as a single entity

   how big is that part compared to the whole?

   the team is a unit

2. 2

   a single undivided whole

   an idea is not a unit that can be moved from one brain to another

3. 3

   an organization regarded as part of a larger social group

   the coach said the offensive unit did a good job

   after the battle the soldier had trouble rejoining his unit

4. 4

   a single undivided natural thing occurring in the composition of something else

   units of nucleic acids

5. 5

   any division of quantity accepted as a standard of measurement or exchange

   the dollar is the United States unit of currency

   a unit of wheat is a bushel

6. 6

   an individual or group or structure or other entity regarded as a structural or functional constituent of a whole

   the reduced the number of units and installations

   the word is a basic linguistic unit