Balloon
/bəˈluːn/
noun
An inflatable buoyant object, often (but not necessarily) round and flexible.
Such an object as a child’s toy or party decoration.
Such an object designed to transport people through the air.
Synonyms: fumetto, speech bubble
verb
To increase or expand rapidly.
“His stomach ballooned from eating such a large meal.”
To go up or voyage in a balloon.
To take up in, or as if in, a balloon.
noun
An unusually large payment due at the end of the term of a loan agreement.
Synonyms: lump sum