1. Belonging to, or concerning, an individual person, company, or interest; peculiar to one's self; unconnected with others; personal; one's own; not public; not general; separate; as, a man's private opinion; private property; a private purse; private expenses or interests; a private secretary. 2. Sequestered from company or observation; appropriated to an individual; secret; secluded; lonely; solitary; as, a private room or apartment; private prayer.