<p><strong>Adjective</strong></p><ul><li>Commonly or generally known or seen:<ul><li>A familiar sight.</li></ul></li><li>Well-acquainted; thoroughly conversant:<ul><li>To be familiar with a subject.</li></ul></li><li>Informal; easygoing; unceremonious; unconstrained:<ul><li>To write in a familiar style.</li></ul></li><li>Closely intimate or personal:<ul><li>A familiar friend; to be on familiar terms.</li></ul></li><li>Unduly intimate; too personal; taking liberties; presuming:<ul><li>The duchess disliked familiar servants.</li></ul></li><li>Synonyms:<ul><li>Bold, forward</li></ul></li><li>Domesticated; tame.</li><li>Of or relating to a family or household.</li></ul><p><strong>Noun</strong></p><ul><li>A familiar friend or associate.</li><li>Familiar spirit.</li><li>Witchcraft and Demonology:<ul><li>A supernatural spirit or demon, often in the form of an animal, supposed to serve and aid a witch or other individual.</li></ul></li><li>Roman Catholic Church:<ul><li>An officer of the Inquisition, employed to arrest accused or suspected persons.</li><li>A person who belongs to the household of the pope or of a bishop, rendering domestic though not menial service.</li></ul></li></ul>