<p><strong>verb</strong></p><ul><li>To make fat.</li><li>To feed (animals) abundantly before slaughter.</li><li>To enrich: to fatten the soil; to fatten one's pocketbook.</li><li>In cards, poker: to increase the number of chips in (a pot).</li><li>In pinochle: to play a card that scores high on (a trick) expected to be taken by a partner.</li></ul>