Englishfor English speakers
analytical
Adjective
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When someone is analytical, that person is skilled in using analysis.
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An analytical method or technique breaks down an object or idea into its smaller parts.
The old analytical approach to science was done, and a new approach is needed.
The analytical techniques of websites like Google can find very detailed information.
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.
theory
Noun
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A theory is an idea that tries to explain an observation.
The new information showed that his theory about growth was incorrect.
Nobody has disproved Einstein's theory of general relativity.