addition, increase, gain -- (a quantity that is added; "there was an addition to property taxes this year"; "they recorded the cattle's gain in weight over a period of weeks")
increase -- (a change resulting in an increase; "the increase is scheduled for next month")
increase, increment, growth -- (a process of becoming larger or longer or more numerous or more important; "the increase in unemployment"; "the growth of population")
increase, increment -- (the amount by which something increases; "they proposed an increase of 15 percent in the fare")
increase, step-up -- (the act of increasing something; "he gave me an increase in salary")
Overview of verb increase
The verb increase has 2 senses
increase -- (become bigger or greater in amount; "The amount of work increased")
increase -- (make bigger or more; "The boss finally increased her salary"; "The university increased the number of students it admitted")