Englishfor English speakers
emergency
Noun
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An emergency is a serious situation that needs to be dealt with very quickly.
She called 911 to report the emergency to police.
With the new fighting, the president has declared a state of emergency.
He was rushed to the emergency room where doctors operated to save his life.
Some airlines failed to show pilots how to operate emergency exits.
In an emergency, please close your doors and windows and stay calm.
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Emergency is the department in a hospital that takes people with immediate medial needs.
closing
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adjective
final or ending
the closing stages of the election
the closing weeks of the year
the closing scene of the film
closing remarks
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noun
the act of closing something
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noun
approaching a particular destination; a coming closer; a narrowing of a gap
the ship's rapid rate of closing gave them little time to avoid a collision
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noun
(= closure)
termination of operations
they regretted the closure of the day care center
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noun
(= completion)
a concluding action
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noun
(= conclusion)
the last section of a communication
in conclusion I want to say...
valve
Noun
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A valve is part of a tube that lets liquid or gas go through one way but stops it from going through the other way.
There are four valves in the heart that let blood go in one direction but stop it from going in the other direction.
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A valve is part of a tube that someone can open or close to let water or other things go through.
Open this valve to let water go through the pipe.