<p><strong>Adjective:</strong></p><ul><li>Not real or genuine; fake; counterfeit: a phony diamond.</li><li>False or deceiving; not truthful; concocted: a phony explanation.</li><li>Insincere or deceitful; affected or pretentious: a phony sales representative.</li></ul><p><strong>Noun:</strong></p><ul><li>Something that is phony; a counterfeit or fake.</li><li>An insincere, pretentious, or deceitful person: He thought my friends were a bunch of phonies.</li></ul><p><strong>Verb (used with object):</strong></p><ul><li>To falsify; counterfeit; fabricate (often followed by up): to phony up a document.</li></ul>