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May anybody explain it like I am 5?

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Memorize this rule: When a noun is used to modify another noun, the singular form is used. Look at these common phrases:

tea ceremony
rose garden
brick wall
wool coat
peace treaty
clock tower
fire engine
book shelf
dance hall
mountain goat
wine glass
vegetable soup
garden club
grave marker
flag pole
bear rug
race car
horse play

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anonymous like I am 5

Repeat after me:

customer service, customer service, customer service, customer service, customer service, customer service, customer service, customer service, customer service, customer service, customer service, customer service, customer service, customer service, customer service

CJ

If you're not 5:

It's a compound noun. Two nouns. The first noun serves as a modifier for the second noun. English has hundreds of them.

CJ

Students: We have free audio pronunciation exercises.
Comments  
anonymous

May anybody explain it like I am 5?

Can anybody …?

That is just the way it is. "Customer service" is a fixed collocation that came into being on its own and is the accepted form. That said, it is not service belonging to the customer, it is service for the customer. I don't know if they have covered nouns in your kindergarten class yet, but "customer" is an attributive noun, that is, a noun used as an adjective right before another noun, like "ham" in "ham sandwich".

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Oh, oh!

You left out office furniture. Emotion: big smile

CJ

CalifJim

Oh, oh!

You left out office furniture.

CJ

My bad!

Also city hall, bed pillow, cat food, staple gun, house warming, twenty-one gun salute, television channel, spark plug ... and the list goes on and on and on and on.

Gee, how could I have forgotten "cookie monster"? Emotion: embarrassed

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