What is the difference between 'illusion' and 'delusion'?
Both of them could mean 'false ideas'. I cannot differentiate them.
- a false or wrong belief or idea
Many people still have the illusion that full employment is possible.
I had no illusions about the task that lay ahead.
- an idea or belief that is not true
It is my conviction, or my delusion, no matter which, that crime brings its own fatality with it.
He had long known that the delusion was partly due to a trap laid for him by Dunstan, who saw in his brother's degrading marriage the means of gratifying at once his jealous hate and his cupidity.