Englishfor English speakers
railway
Noun
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A railway is road for trains.
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A railway is a company that runs trains.
roof
Noun
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A roof is the top part of a building.
My five brothers, two sisters and seven cousins all live together under one roof.
roof
Verb
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If you roof something, then you are putting a roof onto a building.
My father had to roof our house because it needed a roof.