Cool MateKey vs Major
When to use each in English, with meaning, register, and examples.
Key
Top 1,000 (very common)A1noun
Major
Top 1,000 (very common)A2adjective
| Key | Major | |
|---|---|---|
| Pronunciation | 🇬🇧 /["/kiː/"]/🇺🇸 /["/kiː/"]/ | 🇬🇧 /["/ˈmeɪdʒə(r)/"]/🇺🇸 /["/ˈmeɪdʒər/"]/ |
| Meaning | A small metal thing that you use to open a lock. | Very important or large. |
| Example | I lost the key to my house last night. | The major project deadline is coming up next week. |
| Register | Neutral | Neutral |
| How common | Top 1,000 (very common) | Top 1,000 (very common) |
| CEFR level | A1 | A2 |
| Part of speech | noun | adjective |
| 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 | major role, major issue, major change, major breakthrough, major decision |
| Antonyms | lock | minor, insignificant, trivial |
| 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 'majority' when talking about a large group., Using 'major' as a verb incorrectly., Incorrectly placing 'major' before a verb. |
| 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 'major' to describe something significant in formal and everyday contexts, but avoid it in highly casual situations. |
See it in real clips
Frequently asked questions: Key vs Major
What's the difference between Key and Major?
Key: A small metal thing that you use to open a lock. Major: Very important or large.
Which is more advanced: Key and Major?
Major is the highest level, at A2, on the CEFR scale.
Are Key and Major the same CEFR level?
Key: A1, Major: A2 on the CEFR scale.
What part of speech are Key and Major?
Key: noun, Major: adjective.
Can you show an example of each?
Key: I lost the key to my house last night. Major: The major project deadline is coming up next week.
Can I use Key and Major interchangeably?
Not always. Key and Major 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.