WordWeb Online

1. Any division of quantity accepted as a standard of measurement or exchange
   "a unit of wheat is a bushel"; "change per unit volume"; "the dollar is the United States unit of currency";
   - unit of measurement
    
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
   "after the battle the soldier had trouble rejoining his unit"; "the coach said the offensive unit did a good job";
   - social 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";
   - building block
    
6. An assemblage of parts that is regarded as a single entity
   "the team is a unit";
   - whole

Derived forms: units

Type of: article, component, component part, constituent, definite quantity, object, organisation [Brit], organization, part, physical object, portion, thing, whole

Encyclopedia: Unit