Definitions
1.nounAn act, instance of, or state of expansion or increase in size, especially by injection of a gas."The inflation of the balloon took five hours."
2.nounAn increase in the general level of prices or in the cost of living.
3.nounA decline in the value of money.
4.nounAn increase in the quantity of money, leading to a devaluation of existing money.
5.nounUndue expansion or increase, as of academic grades.
6.nounAn extremely rapid expansion of the universe, theorised to have occurred very shortly after the big bang.