Englishfor English speakers
source
Verb
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If you source something, then you obtain or receive it.
source
Noun
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The source of some material, an idea, a product, etc. is the place it came from originally.
XYZ company can't supply these parts anymore, so we need to find a new source.
Church sources said four people were injured and 100 to 200 were taken away by the police.
The paper comes primarily from British sources.
is the main source of global warming.
of
Preposition
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Made using.
It is a house of cards.
error
Noun
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An error is something which is accidentally not correct.
The bank made an error and gave me too much money.
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An error can refer to a computer error.
I keep getting errors on my computer program.