Englishfor English speakers
airspace
Noun
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An airspace is a special part of the atmosphere that is often under the jurisdiction of the land below it.
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An airspace is a part of the sky that is set aside for use by aircraft.
The airplane had instructions to only fly in the airspace above the state of Kentucky.
control
Noun
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If you have control over someone or something, you can make it do what you want.
He should try to take control and tell the other handlers what to do.
in the rain, he had lost control on the wet surface and spun off the road.
The country fell under the direct control of the army.
They are trying to keep tighter control over spending.
The government will demand improved pollution control systems for all factories.
Most companies devote some resources to quality control and product testing.
Unless birth control methods are used, sooner or later the woman is likely to get pregnant.
The continuing Soviet desire for arms control led to a SALT II treaty.
The brain's control systems tend to decline with age so that, for instance, our balance gets less good.
The experimental group took the medicine while the control group took a sugar pill.
Suddenly the airplane went out of control and started diving.
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A control is a button, switch, dial, etc. that lets you make a machine do what you want.
If you turn off your TV with the remote control, it continues to use a quarter of normal power.
She touched the volume control and the sound dropped.
control
Verb
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If you control something, you make it do what you want.
Too many people are overweight because they can't control their eating behaviour.
The company is controlled by a New York businessman.
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If you control something, you do not let its numbers or size grow too much.
The new plan should control inflation.
system
Noun
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A group of things that work together; a way of doing something.
This coloured paper is part of my system for keeping lists of people.