balloon [i bql0:n ]     (순위: 2790 - 고1 수준)   뜻  풍선,기구 Mean  A flexible bag designed to be inflated with hot air or with a gas, such as helium, that is lighter than the surrounding air, causing it to rise and float in the atmosphere. 파생어 balloonlike  [형] 예문 1. ballooning oil prices (급등하는 유가)