Englishfor English speakers
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.
ratio
Noun
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A ratio is the comparison in size or number between two things. It is written mathx:y/math and read mathx/math to mathy/math. It is the same as the fraction math\frac {x} {y}/math.
The ratio of men's jobs to women's is 8 to 1.
But Germany now has one of the highest ratios of spending to GDP in the European Community.
The low student/teacher ratio makes this a great school.