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.
norm
Noun
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A norm is the usual situation, amount, level, etc.
CDs are dying out and MP3s are becoming the norm.
His income is slightly above the norm for someone in his position.
Many teens find it very important to conform to group norms.