Englishfor English speakers
number
Noun
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A symbol that that is used to describe quantity; a numeral.
2, 5589, and 0 are all numbers.
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A few.
She has a number of dictionaries--four or five, I think.
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A musical, theatrical, or literary selection or production.
She chose a number from "Swan Lake" for her dance recital.
number
Verb
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To label objects with numbers.
Number the baskets so that we can find them easily.
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To total or count; to amount to.
I don’t know how many books are in the library, but they must number in the thousands.
nail
Noun
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A nail is a small, long, thin sharp metal thing for holding wood together. People put it into the wood by hitting it with a hammer.
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A nail is the thick, hard part at the ends of fingers and toes.
I broke the top off my finger nail and it was very painful.
nail
Verb
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If you nail something to something else, you use a nail to join them.
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When someone gets an idea just right, we say they nailed it or "hit the nail on the head".
I think you've nailed the reason why this isn't working.