Englishfor English speakers
a
Determinative
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A is used when the following word could be any of a certain type.
Compare "A book I saw on the shelf" and "The book I gave you yesterday".
a
Noun
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A is the first letter of the alphabet.
The letter "a" comes before "b".
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In some schools, an A is a very high grade.
Ron got an A on his earth science test.
bad
Adjective
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If something is bad, it is not good.
The man who killed his wife was very bad.
Skipping school is a bad thing to do.
Debts can go bad when a debtor has gone bankrupt.
Could things get any worse than this?
This is the worst time I've had all year!
risk
Noun
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A risk is something bad that could possibly happen.
There are many risks associated with the stock market.
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A risk is the chance of something bad happening.
The risk of us failing is too great.
risk
Verb
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To risk something means to take a chance with something.
She risked hypothermia by swimming the English Channel.