Difference between Allusion and illusionWell, the confusion is not between one, two or three words today but four words. Let’s start with the first word, allusion.
Allusion is an indirect reference to something; a hint: “Her remarks about her boss made an allusion to the fact that did not like him.” Remember, an allusion is not a direct reference but in fact an indirect reference to something that the speaker has on his mind.
Delusion is a false idea, belief, or opinion that is contrary to fact or reality, resulting from deception or a misconception: “He labored under the delusion that he was the greatest fiction writer ever.”
Delusion also refers to a mental disorder; a false belief strongly held in spite of invalidating evidence; especially, as a mental disorder: “He had a delusional side to him, and often thought how the whole world was against him”.
Elusion is to escape with the help of deception: “Thieves always work on the premise of being able to create an effective illusion and being able to escape capture. ”
Illusion is a deception; a false, although often pleasant, notion; a misconception: “A person’s illusion of youth ultimately fades with maturity.”