money received during a given period (as salary, receipt from trade, interest from investment etc)
money earned by work or investments
Cases of word usage
1) a person who assesses property, income taxes etc (assessor)
2) an estimate of future income and expenditure, especially that made by the Chancellor of the Exchequer (budget)
3) to give money etc to provide a regular income for (e.g. a college) (endow)
4) income, especially the total annual income of the State (revenue)