Englishfor English speakers
add
Verb
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If you add mathx/math to mathy/math, you put mathx/math and mathy/math together.
Cook for five minutes, then add the remaining spices to the soup.
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If you add time, or price, you increase it.
A new kitchen would add value to the home.
We need to add five more waiters by next week.
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If you add something to what you've said, you say something more.
I paused for a moment, then added, "Would you mind if I had some pudding?"
twice
Determiner
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If something is done twice, it is done two times.
I have been to the shop twice today.
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Two times: double.
He was working twice as fast as I was.
Twice three is six.