<p><strong>Noun</strong></p><ul><li>keen relish; hearty enjoyment; gusto.</li><li>an agreeable or piquant flavor imparted to something.</li><li>anything added to impart flavor, enhance one's appreciation, etc.</li><li>piquancy; interest; charm.</li><li>Synonyms: tang, spice.</li><li>liveliness or energy; animating spirit.</li><li>the peel, especially the thin outer peel, of a citrus fruit used for flavoring: lemon zest.</li></ul><p><strong>Verb</strong></p><ul><li>(used with object) to give zest, relish, or piquancy to.</li></ul>