I swear on my children vs Vow

When to use each in English, with meaning, register, and examples.

I swear on my children

InformalTop 5,000 (fairly common)

Vow

FormalTop 3,000 (common)C1verb
Most formal: VowMost common: Vow
 I swear on my childrenVow
Pronunciation🇬🇧 //aɪ swɛə(r) ɒn maɪ ˈtʃɪldrən//🇺🇸 //aɪ swɛr ɑn maɪ ˈtʃɪldrən//🇬🇧 /["/vaʊ/","/vaʊz/","/vaʊd/","/ˈvaʊɪŋ/"]/🇺🇸 /["/vaʊ/","/vaʊz/","/vaʊd/","/ˈvaʊɪŋ/"]/
MeaningI promise strongly using my children as a reason.A serious promise to do something.
ExampleI swear on my children, I will always protect them.She vowed never to speak to him again.
RegisterInformalFormal
How commonTop 5,000 (fairly common)Top 3,000 (common)
CEFR level-C1
Part of speechverb
Collocationsswear on my children, strongly swear, promise with sincerity, vow to protect, emphasize with familyquietly, silently, to, vow never to do something, vow revenge, vow revenge against somebody
Antonyms-break, violate
Common mistakesConfusion between 'swear on' and 'swear to'., Using in overly formal situations., Incorrectly using with abstract concepts.Confused with 'cow' — they sound similar but have different meanings., Using in informal contexts — 'vow' is too strong for casual promises.
Usage notesUsed in informal contexts to express strong promise or truth, often relates to personal feelings or beliefs.Use 'vow' when making a serious commitment, often in formal situations like weddings or ceremonies. Avoid in casual conversations.

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I swear on my children

Frequently asked questions: I swear on my children vs Vow

What's the difference between I swear on my children and Vow?

I swear on my children: I promise strongly using my children as a reason. Vow: A serious promise to do something.

Which is more formal: I swear on my children and Vow?

Vow is the most formal of these.

Which is more common: I swear on my children and Vow?

Vow is the most common in everyday English.

Can you show an example of each?

I swear on my children: I swear on my children, I will always protect them. Vow: She vowed never to speak to him again.

Can I use I swear on my children and Vow interchangeably?

Not always. I swear on my children 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.

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