Englishfor English speakers
argument
Noun
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When two or more people are discussing an idea that they do not agree on, they are having an argument. Often arguments are loud or angry.
I thought we should buy the red car. She thought we should buy the blue car. We had an argument about it.
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An argument can be the reasons behind an idea.
An argument for buying a red car is that it would look cooler than a blue one.
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An argument is the independent variable of a function.
of
Preposition
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Made using.
It is a house of cards.
function
Noun
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Something or someone's function is its purpose or its job.
The army sometimes performs a policing function.
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A function is an organised event.
I met Sylvia at a church function last week.
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If mathX/math is a function of mathY/math, then mathX/math exists because of or is affected by mathY/math
The speed of the computer is a function of its main processor.
When you see, mathY=f(X)/math, you read it, "mathY/math is a function of mathX/math". Here the value of mathY/math depends on the value assigned to the variable mathX/math.
function
Verb
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If something is functioning, it is working and is not completely broken.
Her heart stopped, but her brain continued to function.
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If something functions as mathX/math, it does the job of mathX/math.
In this sentence, "sentence" functions as the subject.