unit

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”

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 whole

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

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

“units of nucleic acids”

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”