Cool MateKey vs Passport
When to use each in English, with meaning, register, and examples.
Key
Top 1,000 (very common)A1noun
Passport
Top 1,000 (very common)A1noun
| Key | Passport | |
|---|---|---|
| Pronunciation | 🇬🇧 /["/kiː/"]/🇺🇸 /["/kiː/"]/ | 🇬🇧 /["/ˈpɑːspɔːt/"]/🇺🇸 /["/ˈpæspɔːrt/"]/ |
| Meaning | A small metal thing that you use to open a lock. | An official document that allows you to travel to other countries. |
| Example | I lost the key to my house last night. | I need to renew my passport before my trip to Europe. |
| Register | Neutral | Neutral |
| How common | Top 1,000 (very common) | Top 1,000 (very common) |
| CEFR level | A1 | A1 |
| Part of speech | noun | noun |
| Collocations | master, skeleton, duplicate, bunch, ring, set, turn, insert, put in, open, unlock, lock, with a/the key, key for, key to, get a key cut, have, hold, key to, Alt, arrow, backspace, row, hit, hold down, press, organ, piano, etc., caress, stroke, touch, major, minor, high, change, change, change, signature, in a/the key, key of, a change of key | valid, full, fake, apply for, renew, get, be valid, expire, photo, photograph, picture, passport into, passport to, valid, full, fake, apply for, renew, get, be valid, expire, photo, photograph, picture, passport into, passport to |
| Antonyms | lock | visa, denial, refusal |
| Common mistakes | Confused with 'cue' when talking about hints., Using 'key' as a verb incorrectly., Forgetting to specify the type of key (e.g. car key, house key). | Confused with 'visa' - a visa is different from a passport., Using 'passports' as a singular noun., Saying 'the passport' when referring to passports in general. |
| Usage notes | Use 'key' when talking about unlocking doors or starting cars. Avoid using it in overly formal contexts unless referring to 'key concepts' or 'key players'. | Use 'passport' when talking about international travel. It's suitable in both formal and casual situations, but avoid using it in slang contexts. |
Frequently asked questions: Key vs Passport
What's the difference between Key and Passport?
Key: A small metal thing that you use to open a lock. Passport: An official document that allows you to travel to other countries.
Are Key and Passport the same CEFR level?
Key: A1, Passport: A1 on the CEFR scale.
Can I use Key and Passport interchangeably?
Not always. Key and Passport 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.