Redistribution of income is the process of taking some income from people who have more money and using it to increase the incomes of people who do not have as much money. Crudely speaking, it is taking from the rich to help the poor. In the United States, we do not do as much redistribution as in many other countries. We do have welfare programs which are a type of redistribution and we do have progressive taxes. However, we still do much less redistribution than many other countries.
The implication of our lack of redistribution is that we have a great deal of inequality. An implication of redistribution is that the wealth in a society gets to be fairly evenly spread around. When there is redistribution, there are fewer very poor people and the rich are often not as wealthy as they are in the United States. In the US, people tend to feel that redistribution is a morally suspect way of helping people who do not deserve it. Therefore, we tend not to redistribute. The major implication of this is that we are a society that is more willing to accept inequality than to take from the rich.