English Meaning & Definitions
A thing that is or is likely to be wrongly perceived or interpreted by the senses.
- “The mirror creates the illusion of a much larger room.”
- “A mirage is an optical illusion caused by atmospheric conditions.”
A false idea or belief; a mistaken belief or interpretation.
- “He is under the illusion that he will be promoted soon.”
- “She finally lost all illusions about her corrupt boss.”
English Synonyms & Near Equivalents
Comprehensive Thesaurus Breakdown
Compare formal, informal, literary synonyms and register nuances for “illusion”.
Late Middle English: from Old French, or from Latin illusio(n-), from illudere 'mock at, deceive', from in- 'against, upon' + ludere 'to play'. The original sense was a piece of deception or mockery, later developing into the sense of a deceptive appearance or perception.
Think of 'ILL-in-un-vision': You are ill in your vision, so you are seeing things that aren't really there.
Frequently Asked Questions About “illusion”
1. What is the meaning of “illusion” in English?
In English, illusion (noun) is defined as: “A thing that is or is likely to be wrongly perceived or interpreted by the senses.”.
2. How do you use “illusion” in a sentence?
“The mirror creates the illusion of a much larger room.”
3. What are English synonyms of “illusion”?
4. What is the etymology and word origin of “illusion”?
Late Middle English: from Old French, or from Latin illusio(n-), from illudere 'mock at, deceive', from in- 'against, upon' + ludere 'to play'. The original sense was a piece of deception or mockery, later developing into the sense of a deceptive appearance or perception.
🇬🇧More English Words to English
View all English words →The base unit of time in the International System of Units (SI), equal to the duration of 9,192,631,770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the caesium-133 atom.
A specific duration of time equal to one hour and forty-six minutes and twelve seconds.
The cardinal number equal to one thousand million (1,000,000,000), expressed in scientific notation as 10^9.
A specific duration of time equivalent to one hour and forty-six minutes.