1
: a nonporous bag of light material that can be inflated especially with air or gas: as a : a bag that is filled with heated air or a gas lighter than air so as to rise and float in the atmosphere and that usually carries a suspended load (as a gondola with passengers) b : an inflatable bag (as of rubber or plastic) usually used as a toy or for decoration
2
: the outline enclosing words spoken or thought by a figure especially in a cartoon
