<p><strong>Noun</strong></p><ul><li>a peculiarity of action, behavior, or personality; mannerism: He is full of strange quirks.</li><li>a shift, subterfuge, or evasion; quibble.</li><li>a sudden twist or turn: He lost his money by a quirk of fate.</li><li>a flourish or showy stroke, as in writing.</li><li>Architecture: an acute angle or channel, as one dividing two parts of a molding or one dividing a flush bead from the adjoining surfaces.</li><li>an area taken from a larger area, as a room or a plot of ground.</li><li>an enclosure for this area.</li><li>Obsolete: a clever or witty remark; quip.</li></ul><p><strong>Adjective</strong></p><ul><li>formed with a quirk or channel, as a molding.</li></ul>