Englishfor English speakers
derivative
Adjective
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If something is derivative, it is obtained from something else
derivative
Noun
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A derivative is something which is based on another.
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A derivative is the derived function]] of another function (the slope at a certain point on some curve mathf(x)/math)
The derivative of mathf:f(x) = x^2/math is mathf':f'(x) = 2x/math
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The value of this function for a given value of its independent variable.
The derivative of mathf(x) = x^2/math at x = 3 is mathf'(3) = 2 * 3 = 6/math.
of
Preposition
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Made using.
It is a house of cards.
the
Determiner
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Used, instead of a, to reference something specific, already known to exist.
Compare "I read a book." and "I read the book."
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Used with a stress, to show that the word following is special.
Are you the John Smith that I went to school with?
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Used with an adjective that acts like a noun to mean all of the people concerned
The poor are always with us.
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Used with superlatives forms of adjectives and adverbs.
You are the best.
displacement
Noun
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Displacement is when something is made to move out of its place.
The war has caused the displacement of tens of thousands of people.
The displacement of folk music by western pop music has happened in many countries.
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Displacement is the amount of liquid or gas that is moved when something floats in it.