Noun
1. 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""change per unit volume"2. 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"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. a single undivided whole;
"an idea is not a unit that can be moved from one brain to another"5. a single undivided natural thing occurring in the composition of something else;
"units of nucleic acids"6. 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"