white sheep

black sheep

A nonconformist; an unusual or unconventional person, who may be rejected or disdained by others for this reason.

black-and-white

Classifying people, objects or concepts as two polar opposites, especially "right" and "wrong"; dichotomous and inflexible.

count sheep

To attempt to go to sleep by thinking of something boring, traditionally by counting imaginary sheep.

wash a blackamoor white

To labour in vain, especially so as to present something as better than it really is; to whitewash.

white bread

Bread made from white flour.

white coat hypertension

Elevated blood pressure measured by a medical practitioner and deemed to result from the patient's emotional response to the medical environment.

white hat

A good person; a hero.

white lie

A deliberately untrue statement which is intended to produce a favorable result; especially, one which is judged to be better than an overhonest alternative, as for example to remain polite in a superficial social exchange, or to choose one's battles.