Cool MateKey vs Password
When to use each in English, with meaning, register, and examples.
Key
Top 1,000 (very common)A1noun
Password
Top 1,000 (very common)B2noun
| Key | Password | |
|---|---|---|
| Pronunciation | 🇬🇧 /["/kiː/"]/🇺🇸 /["/kiː/"]/ | 🇬🇧 /["/ˈpɑːswɜːd/"]/🇺🇸 /["/ˈpæswɜːrd/"]/ |
| Meaning | A small metal thing that you use to open a lock. | A secret word or phrase used to access something. |
| Example | I lost the key to my house last night. | Enter a username and password to get into the system. |
| Register | Neutral | Neutral |
| How common | Top 1,000 (very common) | Top 1,000 (very common) |
| CEFR level | A1 | B2 |
| 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 | correct, valid, user, know, remember, choose, correct, valid, user, know, remember, choose |
| Antonyms | lock | open, access |
| 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). | Confusing with 'username' or 'login', Not capitalizing special characters as needed, Using easily guessable passwords like '123456' |
| 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'. | Used in contexts requiring security, like online accounts. Avoid using informal settings or casual conversation. |
Frequently asked questions: Key vs Password
What's the difference between Key and Password?
Key: A small metal thing that you use to open a lock. Password: A secret word or phrase used to access something.
Which is more advanced: Key and Password?
Password is the highest level, at B2, on the CEFR scale.
Are Key and Password the same CEFR level?
Key: A1, Password: B2 on the CEFR scale.
What part of speech are Key and Password?
Key: noun, Password: noun.
Can you show an example of each?
Key: I lost the key to my house last night. Password: Enter a username and password to get into the system.
Can I use Key and Password interchangeably?
Not always. Key and Password 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.