Noun
1. 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"2. a change resulting in an increase;
"the increase is scheduled for next month"3. a process of becoming larger or longer or more numerous or more important;
"the increase in unemployment""the growth of population"4. the amount by which something increases;
"they proposed an increase of 15 percent in the fare"5. the act of increasing something;
"he gave me an increase in salary"