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crash - To hit something with force, causing damage and a loud noise.

When he fell asleep at the wheel, his car crashed into tree.

adjective

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fatal - Something that can cause death.

Since Martha was a diabetic, she knew that eating that piece of strawberry shortcake could be a fatal mistake.

adjective

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flammable - Easily set on fire; capable of catching fire quickly.

Keep flammable materials away from open flames or heat sources.

noun

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heresy - An opinion or belief that contradicts established norms or accepted standards.

Galileo was once accused of heresy for claiming the Earth orbits the sun.

noun

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hysteria - A state of extreme excitement, fear or anger in which a person, or a group of people, loses control of their emotions and starts to cry, laugh, etc.

There was almost mass hysteria when the band played their final song and some in the crowd rushed towards the stage.

verb

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crack - To break or cause to break without complete separation of parts, often with a sharp sound.

She cracked the mug when she accidentally dropped it.

noun

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casualty - A person killed or injured in a war or accident.

Though many people were injured when the bus crashed, thankfully there were no casualties.

adjective

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precarious - Not safe and likely to fall or fail

Jill's spending habits were without bound, and as a result her financial situation was precarious.

verb

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jeopardize - To endanger or threaten the success or safety of something.

Drinking and driving can jeopardize not only your own life but also the lives of others.

adjective

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addictive - The habit-forming quality of a substance or activity that causes someone to become dependent on using it or doing it.

Nicotine is a highly addictive substance found in cigarettes.

verb

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decay - To gradually deteriorate or break down, becoming weaker and more damaged.

You couldn't see it from the outside, but the termites caused the house to decay from the inside until it just collappsed.

verb

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slip - To lose balance and slide or fall accidentally.

She slipped on the icy sidewalk and fell.