Cool MateAuthentic vs Legitimate vs Real vs True
When to use each in English, with meaning, register, and examples.
Authentic
Legitimate
Real
True
| Authentic | Legitimate | Real | True | |
|---|---|---|---|---|
| Pronunciation | 🇬🇧 /["/ɔːˈθentɪk/"]/🇺🇸 /["/ɔːˈθentɪk/"]/ | 🇬🇧 /["/lɪˈdʒɪtɪmət/"]/🇺🇸 /["/lɪˈdʒɪtɪmət/"]/ | 🇬🇧 /["/ˈriːəl//rɪəl/"]/🇺🇸 /["/ˈriːəl/"]/ | 🇬🇧 /["/truː/"]/🇺🇸 /["/truː/"]/ |
| Meaning | Real and true; not fake. | Real or acceptable; not false. | Something that exists or is true, not fake. | Correct or real; not false. |
| Example | I don't know if the painting is authentic. | a legitimate grievance | The cake looks real, but it is actually made of plastic. | The story is true, and I believe every word of it. |
| Register | Neutral | Formal | Neutral | Neutral |
| How common | Top 2,000 (common) | Top 2,000 (common) | Top 1,000 (very common) | Top 1,000 (very common) |
| CEFR level | C1 | C1 | A1 | A1 |
| Part of speech | adjective | adjective | adjective | adjective |
| Collocations | authentic experience, authentic materials, authentic voice, authentic culture | be, seem, consider something, completely, entirely, perfectly, be, seem, consider something, completely, entirely, perfectly | be, look, seem, all too, very, frighteningly, real and/or imaginary, real and/or imagined, be, look, seem, all too, very, frighteningly, real and/or imaginary, real and/or imagined | be, ring, seem, especially, particularly, very, be, feel, remain, absolutely, to, true to your word |
| Antonyms | fake, false, counterfeit | illegitimate, unjustified, fake | fake, false, imaginary | false, untrue, incorrect |
| Common mistakes | Confusing 'authentic' with 'authoritative', Using 'authentic' inappropriately in place of 'actual', Mispronouncing it as 'authen-tic' instead of 'aw-then-tic' | Misusing 'legitimate' when 'legit' is more appropriate in slang contexts., Confusing with 'illegitimate' without understanding its negative connotation., Using 'legitimate' as a verb instead of as an adjective. | Confused with 'really' when describing intensity., 'Real' used incorrectly as a verb., Used in place of 'genuine' to describe people. | Confused with 'truly' as an adverb., 'True' is often misspelled as 'tru'., Used the phrase 'true in' instead of 'true to'. |
| Usage notes | Use 'authentic' when something is genuine or original. It is appropriate in both casual and formal contexts; however, avoid using it in overly casual settings. | Use 'legitimate' in formal contexts to describe authenticity or legality. Avoid in very casual conversations. | Used to describe authenticity or truth. It's appropriate in most contexts but can sound overly emphatic if used in casual conversation. For example, saying 'Is this real?' is common, while 'This is real!' may seem dramatic. | Used when confirming the accuracy of something. Appropriate in both casual and serious contexts. Avoid in overly casual settings when it may sound too blunt. |
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Frequently asked questions: Authentic vs Legitimate vs Real vs True
What's the difference between Authentic, Legitimate, Real, and True?
Authentic: Real and true; not fake. Legitimate: Real or acceptable; not false. Real: Something that exists or is true, not fake. True: Correct or real; not false.
Which is more formal: Authentic, Legitimate, Real, and True?
Legitimate is the most formal of these.
Are Authentic, Legitimate, Real, and True the same CEFR level?
Authentic: C1, Legitimate: C1, Real: A1, True: A1 on the CEFR scale.
What part of speech are Authentic, Legitimate, Real, and True?
Authentic: adjective, Legitimate: adjective, Real: adjective, True: adjective.
Can you show an example of each?
Authentic: I don't know if the painting is authentic. Legitimate: a legitimate grievance Real: The cake looks real, but it is actually made of plastic. True: The story is true, and I believe every word of it.
Can I use Authentic, Legitimate, Real, and True interchangeably?
Not always. Authentic, Legitimate, Real, and True are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.