Cool MateOath vs Vow
When to use each in English, with meaning, register, and examples.
Oath
FormalTop 3,000 (common)B1noun
Vow
FormalTop 3,000 (common)C1verb
| Oath | Vow | |
|---|---|---|
| Pronunciation | 🇬🇧 //əʊθ//🇺🇸 //oʊθ// | 🇬🇧 /["/vaʊ/","/vaʊz/","/vaʊd/","/ˈvaʊɪŋ/"]/🇺🇸 /["/vaʊ/","/vaʊz/","/vaʊd/","/ˈvaʊɪŋ/"]/ |
| Meaning | A promise to tell the truth or do something important. | A serious promise to do something. |
| Example | He took an oath to uphold the law. | She vowed never to speak to him again. |
| Register | Formal | Formal |
| How common | Top 3,000 (common) | Top 3,000 (common) |
| CEFR level | B1 | C1 |
| Part of speech | noun | verb |
| Collocations | take an oath, sworn oath, oath of office, oath of allegiance | quietly, silently, to, vow never to do something, vow revenge, vow revenge against somebody |
| Antonyms | lie, dishonesty | break, violate |
| Common mistakes | Confusing 'oath' with 'oaths' as the plural form., Using it in informal settings when it's typically formal. | Confused with 'cow' — they sound similar but have different meanings., Using in informal contexts — 'vow' is too strong for casual promises. |
| Usage notes | Used in legal and ceremonial contexts. It may not be appropriate in casual conversation. | Use 'vow' when making a serious commitment, often in formal situations like weddings or ceremonies. Avoid in casual conversations. |
Frequently asked questions: Oath vs Vow
What's the difference between Oath and Vow?
Oath: A promise to tell the truth or do something important. Vow: A serious promise to do something.
Are Oath and Vow the same CEFR level?
Oath: B1, Vow: C1 on the CEFR scale.
Can I use Oath and Vow interchangeably?
Not always. Oath and Vow 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.