|Origin:||Latin illusio, from illudere 'to make fun of', from ludere 'to play'|
an idea or opinion that is wrong, especially about yourself [↪ delusion]
They suffer from the illusion that they cannot solve their problems.
She was under no illusion that he loved her.
It is an illusion that the Arctic is dark in winter.
She had no illusions about her physical attractions.
'I hate to shatter your illusions,' he said.
something that seems to be different from the way it really is
He was unlikely to be satisfied with the illusion of power.
give/create an illusion
The mirrors in the room gave an illusion of greater space.
Credit creates the illusion that you can own things without paying for them.