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.
void
Adjective
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If something is void, it is not valid.
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If something is void, it is empty.
void
Noun
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A void is an empty space.
void
Verb
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If you void something, you make it invalid or worthless.
He voided the cheque and returned it.