balloon
The noun refers to an inflatable object, ranging from small party toys to massive aircraft. It carries a light, airy, and often celebratory or whimsical connotation when used in a social context, while the aircraft sense evokes a feeling of slow, drifting movement. As a verb, the word describes a sudden, dramatic expansion. When applied to finances or populations, it suggests an uncontrolled or alarming rate of growth. When applied to physical objects like fabric or sails, it describes the visual effect of being filled with air.
Meanings
A small rubber bag that is filled with air or a gas such as helium and is used as a toy or for decoration.
"The children played with colorful balloons at the party."
A large bag filled with hot air or gas that is used for transporting people through the air.
"The hot air balloon drifted slowly over the valley."
To increase rapidly in size, amount, or importance.
"The national debt has ballooned over the last decade."