Illusion

easyNegative tone

ih-LOO-zhun

noun

Definition

A false idea or belief; a deceptive appearance

Memory hook

ILL-USION: a false vision that MOCKS reality — something deceptive (not allusion = indirect reference).

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Word roots

illudereto mock/deceive(Latin)

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Examples

The oasis was merely an illusion caused by the heat.
She harbored no illusions about the difficulty of the task.

Test yourself

Fill in the blank with the right word:

The oasis was merely an ______ caused by the heat.
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illusion

Synonyms

delusionmiragechimerahallucination

Antonyms

realitytruthactualityfact

Categories

View all Perception words

GRE Tip

Illusion is a easy-difficulty GRE word. On the GRE, you might see it paired with synonyms like "delusion" or "mirage" in Sentence Equivalence questions. Look for contrast clues (however, despite, although) that signal the opposite meaning. Words like "reality".

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