source 1 S2 W1 AC / sɔs $ sɔrs / 名词 [可数名词]

1 a thing, place, activity etc that you get something from :

They get their money from various sources.

source of

Beans are a very good source of protein.

For me, music is a great source of enjoyment.

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.

3 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.

4 the place where a stream or river starts → mouth

5 technical source code

COLLOCATIONS

ADJECTIVES/NOUN + source

a good/excellent/rich source (= a source that provides a lot of something ) Milk is a good source of calcium.

a useful source People said television was their most useful source of local information.

a major/important source The lead mines were once a major source of employment for the islanders.

a great source In times of stress, food can be a great source of comfort.

the main/primary source It started as a hobby, but now it is his main source of income.

an alternative source The university is exploring alternative funding sources.

an energy source We hope to see increased usage of renewable energy sources.

a food source Slugs attack potatoes in late summer, when other food sources are disappearing.

a power source (= something that produces power ) First, you need to turn off the power source.

a light source (= something that produces light ) The statue is illuminated by a hidden light source.