Peril vs Risk

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

Peril

Formal Beyond 10,000 (less common) C2 noun

Risk

Top 1,000 (very common) B1 noun

Most formal: Peril Most common: Risk

	Peril	Risk
Pronunciation	🇬🇧 //ˈpɛrɪl// 🇺🇸 //ˈpɛrəl// Hear Peril	🇬🇧 /["/rɪsk/"]/ 🇺🇸 /["/rɪsk/"]/ Hear Risk
Meaning	Serious danger or risk.	the chance of something bad happening
Example	The explorers faced great peril as they navigated through the treacherous mountains.	There is a risk involved in investing in the stock market.
Register	Formal	Neutral
How common	Beyond 10,000 (less common)	Top 1,000 (very common)
CEFR level	C2	B1
Part of speech	noun	noun
Collocations	live in peril, face peril, put in peril, perilous situation, sense of peril	big, considerable, enormous, degree, level, element, face, run, take, outweigh something, group, factor, assessment, at risk, at risk from, at risk of, at your own risk, an increase in risk, a reduction in risk, big, considerable, enormous, degree, level, element, face, run, take, outweigh something, group, factor, assessment, at risk, at risk from, at risk of, at your own risk, an increase in risk, a reduction in risk, big, considerable, enormous, degree, level, element, face, run, take, outweigh something, group, factor, assessment, at risk, at risk from, at risk of, at your own risk, an increase in risk, a reduction in risk
Antonyms	safety, security, protection	safety, certainty
Common mistakes	Confusing 'peril' with 'perilous' – 'peril' is a noun, 'perilous' is an adjective., Using 'peril' in informal settings where simpler words could be clearer., Mispronouncing it – learners often omit the 'r' sound.	Confusing risk with danger - risk is about possibility, while danger implies a higher chance of harm., Using 'risks' as a singular noun - remember to use the correct plural or singular form., Omitting the object when saying 'risk' - always specify what is being risked.
Usage notes	Used often in literature or formal contexts. Avoid in casual conversations where simpler terms like 'danger' are preferred.	Commonly used in both formal and informal contexts. When discussing financial matters, 'risk' is frequent; however, it may not be appropriate in casual conversation about personal matters unless framed carefully.

Frequently asked questions: Peril vs Risk

What's the difference between Peril and Risk?

Peril: Serious danger or risk. Risk: the chance of something bad happening

Which is more formal: Peril and Risk?

Peril is the most formal of these.

Which is more common: Peril and Risk?

Risk is the most common in everyday English.

Are Peril and Risk the same CEFR level?

Peril: C2, Risk: B1 on the CEFR scale.

Can I use Peril and Risk interchangeably?

Not always. Peril and Risk 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.