Longman Dictionary of Contemporary English homepage

Topic: NEWSPAPERS, PUBLISHING

Date: 1300-1400
Language: Old French
Origin: sourse, from sourdre 'to rise, spring out', from Latin surgere; SURGE1

source

1 noun
     
source1 S2 W1 [countable]
1 a thing, place, activity etc that you get something from:
They get their money from various sources.
source of
a useful source of information
Beans are a very good source of protein.
For me, music is a great source of enjoyment.
major/primary/main source of something
the country's main source of income
energy/food/light source
relatively clean energy sources
at source British English
Is your pension taxed at source (=before it is paid to you)?
2 the cause of something, especially a problem, or the place where it starts
source of
We've found the source of the trouble.
The recent name change has been the source of some confusion.
3TCN a person, book, or document that supplies you with information:
List all your sources at the end of your essay.
I've heard from reliable sources that the company is in trouble.
4SG the place where a stream or river starts
5 technical source code
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