Customary vs Familiar
When to use each in English, with meaning, register, and examples.
Customary
Top 3,000 (common)B1adjective
Familiar
Top 1,000 (very common)B1adjective
Most common: Familiar
| Customary | Familiar | |
|---|---|---|
| Pronunciation | 🇬🇧 //ˈkʌstəməri//🇺🇸 //ˈkʌstəmˌɛri// | 🇬🇧 /["/fəˈmɪliə(r)/"]/🇺🇸 /["/fəˈmɪliər/"]/ |
| Meaning | Something that is usual or expected. | Well-known or recognized. |
| Example | It is customary to shake hands when meeting someone. | My grandmother's cooking is very familiar to me because I grew up eating her dishes. |
| Register | Neutral | Neutral |
| How common | Top 3,000 (common) | Top 1,000 (very common) |
| CEFR level | B1 | B1 |
| Part of speech | adjective | adjective |
| Collocations | customary practice, customary law, customary behavior | be, feel, look, extremely, fairly, very, to, be, seem, become, extremely, fairly, very |
| Antonyms | unusual, unexpected | unfamiliar, unknown |
| Common mistakes | Confusing with 'customize', which means to modify., Using 'customary' inappropriately for uncommon practices., Mixing up with 'habitual', which implies personal habits rather than societal norms. | Confusing 'familiar' with 'family' due to similar spelling., Using 'familiar' without the appropriate preposition (to) after it., Using 'familiarly' in the wrong context. |
| Usage notes | Use 'customary' when describing behavior or practices that are widely accepted; it’s neutral but may sound slightly formal in casual contexts. | 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. |
Frequently asked questions: Customary vs Familiar
What's the difference between Customary and Familiar?
Customary: Something that is usual or expected. Familiar: Well-known or recognized.
Which is more common: Customary and Familiar?
Familiar is the most common in everyday English.
Are Customary and Familiar the same CEFR level?
Customary: B1, Familiar: B1 on the CEFR scale.
Can I use Customary and Familiar interchangeably?
Not always. Customary and Familiar 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.