A number of countries have made efforts to sideline the U.S. dollar as primary unit of international exchange. (politics.stackexchange.com)
The individual constituents are the actual primary units of a civilized society, and therefore the larger society exists solely as a «composite one» and not as an indivisible or atomic one. (religion-online.org)
When Fonda S. Crawford, a 3rd - grade teacher in the Somerset, Ky., school district, first learned of her state's mandate to transform traditional K - 3 classes into nongraded primary units, she admits to being «scared to death.» (edweek.org)