Do not use either term as a singular noun. For plurals, phrasing such as Black people, white people, Black teachers, white students is often preferable when clearly relevant. White officers account for 64% of the police force, Black officers 21% and Latino officers 15%. According to the AP Stylebook, the plural nouns Blacks and whites are generally acceptable when clearly relevant and needed for reasons of space or sentence construction. He helped integrate dance halls among Blacks, whites, Latinos and Asian Americans. Black and white are acceptable as adjectives when relevant.