Englishfor English speakers
flight
Noun
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Flight is the act of flying: moving through the air using wings.
Birds have had flight for millions of years.
The flight of the bird was beautiful.
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A flight is one trip on an airplane.
The flight to Boston leaves soon.
This flight is going to New York.
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Flight is the act of running away and hiding.
The flight of the man just after the crime made the police think he was guilty.
duration
Noun
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The time something takes, or how much time it takes.
In the duration of his speech, ten more people came into the room
The duration of this event will be three hours.
For the duration of the work painting the rooms, you'll have to sleep in a different room.