English Reference
noun · verb

peril

n. · v.
US /ˈpɛɹəɫ/ UK /pˈɛɹəl/ per·il UK spelling peril's, peril's, periled, periling, perilled, perilling

  1. 01 C1 Advanced FormalLiterary

    n.a situation where you are in great and immediate danger.

    n.a state of serious and immediate danger; often used in the phrase 'at one's peril'.

    Simple

    The small boat was in great peril as the storm waves grew higher.

    In context

    The explorers were in mortal peril when their oxygen supplies began to fail at an altitude of eight thousand metres.

    Usage

    Commonly appears in the fixed expression 'at your peril', meaning you must accept the risks of your own actions.

  2. 02 C1 Advanced FormalTechnical Law

    n.something that causes danger or risk.

    n.a specific source of risk or a cause of loss, especially in a legal or insurance context.

    Simple

    The hidden rocks in the river are a peril to all passing ships.

    In context

    The insurance policy specifically covers damage caused by fire, flood, and other natural perils.

    Usage

    In insurance and law, it refers to the specific cause of a loss.

  3. 03 C2 Proficiency ArchaicLiterary

    v.to put someone or something in a dangerous situation.

    v.to expose to danger or risk; to imperil.

    Simple

    His reckless driving could peril the lives of everyone in the car.

    In context

    The diplomat feared that a single leaked document might peril the entire peace process.

    Usage

    The verb form is significantly less common than the noun; modern writers typically prefer 'endanger' or 'imperil'.

    endangerimperilrisk

But many observers, from MPs to legal experts, say the whole system is in peril.

BBC News· 24 Aug 2026

Continuing down the current path comes at our own peril.

The Guardian· 15 Aug 2026

From Middle English peril, from Old French peril, from Latin perīculum. Doublet of periculum.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

This entry
Origin Latin perīculum
Level C1 · Advanced
Frequency Frequent
Updated