<p><strong>Verb</strong></p><ul><li>(used with object)<ul><li>To place in or bring into mutual or reciprocal relation; establish in orderly connection: <em>to correlate expenses and income.</em></li></ul></li></ul><p><strong>Adjective</strong></p><ul><li>Mutually or reciprocally related.</li></ul><p><strong>Noun</strong></p><ul><li>Either of two related things, especially when one implies the other.</li></ul><p><strong>Verb</strong></p><ul><li>(used without object)<ul><li>To have a mutual or reciprocal relation; stand in correlation: <em>The results of the two tests correlate to a high degree.</em></li></ul></li></ul>