Oaths vs Pledge

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

Oaths

FormalBeyond 10,000 (less common)

Pledge

FormalTop 2,000 (common)C1verb
Most common: Pledge
 OathsPledge
Pronunciation🇬🇧 //oʊθs//🇺🇸 //oʊθs//🇬🇧 //plɛdʒ//🇺🇸 //plɛdʒ//
MeaningFormal promises, often made publicly.To make a serious promise or commitment.
ExampleThe witness took several oaths before testifying in court.She decided to pledge her support to the charity event.
RegisterFormalFormal
How commonBeyond 10,000 (less common)Top 2,000 (common)
CEFR level-C1
Part of speechverb
Collocationstake an oath, swear oaths, make oaths, honor oathspledge allegiance, pledge support, pledge a donation
Antonymsdishonor, break a promiserenounce, disavow, withdraw
Common mistakesConfused with 'oathes'; the correct plural is 'oaths'., Using 'oath' instead of 'oaths' when referring to multiple promises., Misunderstanding the religious context; not all oaths are religious.Confused with 'pledged' vs 'pledge' as different tenses., Omitting the object after the verb., Using 'pledge' when referring to a general promise instead of a formal commitment.
Usage notesUsed in official or legal contexts. Avoid in casual conversations. 'Take an oath' is a more common phrase.Typically used in formal contexts, such as during ceremonies or official statements. Avoid in casual conversations.

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Oaths
Pledge

Frequently asked questions: Oaths vs Pledge

What's the difference between Oaths and Pledge?

Oaths: Formal promises, often made publicly. Pledge: To make a serious promise or commitment.

Which is more common: Oaths and Pledge?

Pledge is the most common in everyday English.

Can you show an example of each?

Oaths: The witness took several oaths before testifying in court. Pledge: She decided to pledge her support to the charity event.

Can I use Oaths and Pledge interchangeably?

Not always. Oaths and Pledge 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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