<p><strong>Verb</strong></p><ul><li>(used with object)<ul><li>To release the air or gas from (something inflated, as a balloon): They deflated the tires slightly to allow the truck to drive under the overpass.</li><li>To depress or reduce (a person or a person's ego, hopes, spirits, etc.); puncture; dash: Her rebuff thoroughly deflated me.</li><li>To reduce (currency, prices, etc.) from an inflated condition; to affect with deflation.</li></ul></li><li>(used without object)<ul><li>To become deflated.</li></ul></li></ul>