English Reference
noun · verb

hazard

n. · v.
US /ˈhæzɝd/ UK /hˈæzəd/ haz·ard UK spelling hazard's, hazard's

  1. 01 B2 Upper Intermediate

    n.something that is dangerous and could cause harm or an accident.

    n.a potential source of harm, danger, or risk. Countable in most contexts.

    Simple

    Wet floors are a serious safety hazard in a busy restaurant.

    In context

    The safety inspector identified several fire hazards in the old warehouse, including blocked exits and faulty electrical wiring.

  2. 02 B2 Upper Intermediate Sport

    n.an area on a golf course that is difficult to play out of, like a pond or a sand pit.

    n.a permanent obstacle on a golf course, such as a bunker or a water feature, designed to increase the difficulty of play.

    Simple

    His ball landed in a water hazard, so he had to take a penalty shot.

    In context

    The course designer strategically placed sand hazards around the green to challenge even the most experienced professional golfers.

  3. 03 C1 Advanced Technical Computing

    n.a technical problem in a computer's processor that stops it from working correctly for a moment.

    n.a condition in a CPU pipeline where the next instruction cannot execute in the following clock cycle due to data or control dependencies.

    Simple

    The engineer had to fix a data hazard that was slowing down the processor.

    In context

    Modern microarchitectures use complex forwarding logic to mitigate the performance impact of data hazards in the instruction pipeline.

    pipeline stalldependency
  4. 04 C2 Proficiency Archaic

    n.a game of chance played with dice that was popular hundreds of years ago.

    n.a gambling game played with two dice, popular from the medieval period through the 19th century.

    Simple

    The characters in the old story spent their evenings playing hazard in the tavern.

    In context

    In the eighteenth century, many aristocrats lost their family fortunes at the hazard tables of London's exclusive gaming clubs.

    gamblinggame of chance
  5. 05 C1 Advanced Formal

    v.to say something even though you know you might be wrong.

    v.to venture or risk a statement or guess, often used in the polite phrase 'hazard a guess'.

    Simple

    I would not dare to hazard a guess about who will win the election.

    In context

    Few economists were willing to hazard a prediction regarding the long-term effects of the new trade policy.

    Usage

    Usually takes a direct object like 'guess', 'opinion', or 'prediction'.

She fiercely attacked the federal government’s decision to get people quickly back to work at New York’s Ground Zero, despite the health hazards.

The Guardian· 12 Aug 2026

Fans, for example, can become trip hazards because they are not part of her usual layout.

BBC News· 11 Aug 2026
This entry
Level C1 · Advanced
Frequency Frequent
Updated