Englishfor English speakers
lost
Adjective
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If you are lost you do not know where you are. You might not know how to get home.
I was lost in the woods for a week.
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If something is lost you do not know where it is.
My phone is lost.
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If something is lost it is gone. It might not exist any more.
All my hope is lost.
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If something is lost it has failed.
Trying to reach her is a lost cause.
data
Noun
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Data is information, such as facts, numbers, photographs, etc.
A study using experimental data from ten schools found no difference between methods.