n. A circle; a circular surface, track, path, or course; an orbit; a ring; also, that which is circular, as a shield: as, the orb of the moon.n. A sphere or spheroidal body; a globe; a ball.n. Hence The earth or one of the heavenly bodies; in particular, the sun or the moon.n. The eye; an eyeball: so called from its spheroidal shape, and the comparison between its luminous brilliancy and that of the stars.n. A hollow globe; specifically, in ancient astronomy, a hollow globe or sphere supposed to form part of the solar or sidereal system.n. The globe forming part of royal regalia; the monde or mound.n. In astrology, the space within which the astrological influence of a planet or of a house is supposed to act.n. In architecture, a plain circular boss. See boss, 5.To inclose as in an orb; encircle; surround; shut up.To move as in a circle; roll as an orb: used reflexively.To form into a circle or sphere; make an orb.To become an orb or like an orb; assume the shape, appearance, or qualities of a circle or sphere; fill out the space of a circle or sphere; round itself out.Bereaved, especially of children.n. A blank window or panel.