—v.t. 1. to distend; swell or puff out; dilate: The king cobra inflates its hood. 2. to cause to expand or distend with air or gas: to inflate a balloon. 3. to puff up with pride, satisfaction, etc.
4. to elate.
5. Econ.to expand (money, prices, an economy, etc.) unduly in amount, value, or size; affect with inflation.
—v.i. 1. to become inflated.
2. to increase, esp. suddenly and substantially: The $10 subscription has inflated to $25.