balloon
1. bal.loon \b*-'lu:n\ \-'lu:-n*st\ n [F ballon large football, balloon, fr. It dial. ballone large footb]all, aug. of balla ball, of Gmc origin 1: a nonporous bag of tough light material filled with heated air or a gas lighter than air so as to rise and float in the atmosphere 2: a toy consisting of an inflatable rubber bag 3: the outline enclosing words represented as coming from the mouth of a pi ctured figure esp. in a cartoon - bal.loon.ist n 2. balloon vt : INFLATE, DISTEND 1: to ascend or travel in a balloon 2: to swell or puff out 3: to increase rapidly
Webster's English Dictionary