ˈjuː.nɪt həʊl hoʊl 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 a single undivided whole an idea is not a unit that can be moved from one brain to another 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 a single undivided natural thing occurring in the composition of something else units of nucleic acids 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 an individual or group or structure or other entity regarded as a structural or functional constituent of a whole they reduced the number of units and installations the word is a basic linguistic unit