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deadline - A specific time or date by which something must be completed.

She worked well under pressure and always met every deadline on time.

noun

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nosedive - A sudden, steep drop, a sharp decline in condition, success, or stability.

After the scandal, the company’s stock took a nosedive.

adjective

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pernicious - Having a harmful effect, especially in a gradual or subtle way.

People used to think that smoking was good for you because it seemed calming, but now we realize that its pernicious effects are deadly over time.

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.

verb

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detonate - To cause something to explode suddenly and violently.

One small spark is enough to detonate a barrel of fireworks.

noun

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tempest - A violent windy storm

The powerful tempest tossed the ship back and forth amongst the waves.

noun

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peril - Serious and immediate danger

Roger was aware of the peril of shark-infested waters, but he truly realized it when it was too late.

adjective

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caustic - Sarcastic or severely critical, often in a hurtful or biting manner; or able to burn or corrode organic tissue, typically referring to chemicals or substances.

The caustic chemical spilled onto the floor and quickly started to eat away at the floor surface.

noun

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beast - Something or somebody very difficult or unpleasant to deal with.

He acted like a beast when he lost his temper, and shouted at the top of his lungs and threw dishes.

verb

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loom - To appear as a dangerous event that might happen in the near future

Joe looked at the economic data, and could sense a recession looming in the near future.

adjective

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lethal - Capable of causing death; deadly or fatal.

The venom of that snake is so lethal that one bite can be fatal.

nounverb noun

See verb

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breach - An act of breaking a law, rule, or agreement.

I didn't trust him after he shared my secret, in what I regarded as a breach of trust.