Exclusion refers to the act of not allowing someone or something to take part in an activity or to enter a place
. It can also refer to an event or situation that is not included in an insurance agreement as something for which the insurance company will pay money
. Exclusion can be deliberate and painful, as in the case of someone being left out, or it can be neutral, as in the case of a department store sale where some items are excluded from the discount
