<p><strong>Verb (used with object)</strong></p><ul><li>to make solid; make into a hard or compact mass; change from a liquid or gaseous to a solid form.</li><li>to unite firmly or consolidate.</li><li>to form into crystals; make crystallized.</li></ul><p><strong>Verb (used without object)</strong></p><ul><li>to become solid.</li><li>to form into crystals; become crystallized.</li></ul>