Englishfor English speakers
main
Adjective
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The main thing is the most important or biggest one.
They turned off the main road and saw a small house.
There are many problems, but the main one is money.
what was the main reason for war in Europe in 1914?
main
Noun
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A main is a large pipe or wire that carries gas, water, electricity, etc.
A break in a water main has closed the road.
airway
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noun
(= air passage)
a duct that provides ventilation (as in mines)
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noun
(= respiratory tract)
the passages through which air enters and leaves the body
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noun
(= airline)
a commercial enterprise that provides scheduled flights for passengers
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noun
(= air lane)
a designated route followed by airplanes in flying from one airport to another