[ I/T ] to cause an object to increase in size and shape by filling it with air or gas, or (of an object) to become larger as a result of this process:

[ T ] to make a number or value higher or greater than it should be, or to make something seem more important than it really is:

[ I or T ] to increase the value or price of something, or to become more valuable or expensive:

[ T ] to make a number, price, or value higher than it should be or than is reasonable, sometimes in order to deceive people: