Cool MateFamiliar vs Known
When to use each in English, with meaning, register, and examples.
Familiar
Top 1,000 (very common)B1adjective
Known
Top 1,000 (very common)
| Familiar | Known | |
|---|---|---|
| Pronunciation | 🇬🇧 /["/fəˈmɪliə(r)/"]/🇺🇸 /["/fəˈmɪliər/"]/ | 🇬🇧 //nəʊn//🇺🇸 //noʊn// |
| Meaning | Well-known or recognized. | Understood or recognized by many people. |
| Example | My grandmother's cooking is very familiar to me because I grew up eating her dishes. | She is a known expert in environmental science. |
| Register | Neutral | Neutral |
| How common | Top 1,000 (very common) | Top 1,000 (very common) |
| CEFR level | B1 | - |
| Part of speech | adjective | |
| Collocations | be, feel, look, extremely, fairly, very, to, be, seem, become, extremely, fairly, very | well-known, known for, known fact, be known as, known quantity |
| Antonyms | unfamiliar, unknown | unknown, ignorant, unfamiliar |
| Common mistakes | Confusing 'familiar' with 'family' due to similar spelling., Using 'familiar' without the appropriate preposition (to) after it., Using 'familiarly' in the wrong context. | Confusing 'known' with 'knowing' (the present participle), Using 'known' when 'know' is needed for present tense, 'Known' should not be used as a verb |
| Usage notes | Use 'familiar' in both formal and informal contexts. It's appropriate when talking about something you know well. Avoid using it for professional situations where you need to exhibit more formality. | Used to describe something recognized or familiar. Suitable in both casual and formal contexts. Avoid using in overly complex or abstract discussions. |
See it in real clips
Frequently asked questions: Familiar vs Known
What's the difference between Familiar and Known?
Familiar: Well-known or recognized. Known: Understood or recognized by many people.
Can you show an example of each?
Familiar: My grandmother's cooking is very familiar to me because I grew up eating her dishes. Known: She is a known expert in environmental science.
Can I use Familiar and Known interchangeably?
Not always. Familiar and Known 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.