<p><strong>Adjective</strong></p><ul><li>having relatively great extent from one surface or side to the opposite; not thin: a thick slice.</li><li>composed of or containing objects, particles, etc., close together; dense: a thick forest.</li><li>husky or hoarse; not distinctly articulated: The patient's speech is still quite thick.</li><li>deep or profound: thick darkness.</li><li>(of a liquid) heavy or viscous: a thick syrup.</li><li>close in friendship; intimate.</li><li>mentally slow; stupid; dull.</li><li>disagreeably excessive or exaggerated: They thought it a bit thick when he called himself a genius.</li></ul><p><strong>Adverb</strong></p><ul><li>in a thick manner.</li><li>close together; closely packed: The roses grew thick along the path.</li><li>in a manner to produce something thick: Slice the cheese thick.</li></ul><p><strong>Noun</strong></p><ul><li>the thickest, densest, or most crowded part: in the thick of the fight.</li></ul>