Pronunciation: (fu-mil'yur),[key] —adj. 1. commonly or generally known or seen: a familiar sight. 2. well-acquainted; thoroughly conversant: to be familiar with a subject. 3. informal; easygoing; unceremonious; unconstrained: to write in a familiar style. 4. closely intimate or personal: a familiar friend; to be on familiar terms. 5. unduly intimate; too personal; taking liberties; presuming: The duchess disliked familiar servants. 6. domesticated; tame.
7. of or pertaining to a family or household.
—n. 1. a familiar friend or associate.
2. Witchcraft and Demonology. a. an animal, as a cat, that embodies a supernatural spirit and aids a witch in performing magic.
b. See familiar spirit. 3. Rom. Cath. Ch. a. an officer of the Inquisition, employed to arrest accused or suspected persons.
b. a person who belongs to the household of the pope or of a bishop, rendering domestic though not menial service.