In English grammar, some things are seen as a whole or mass. These are called uncountable nouns, because they cannot be separated or counted.
Some examples of uncountable nouns are:
Ideas and experiences: advice, information, progress, news, luck, fun, work
Materials and substances: water, rice, cement, gold, milk
Weather words: weather, thunder, lightning, rain, snow
Names for groups or collections of things: furniture, equipment, rubbish, luggage
Other common uncountable nouns include: accommodation, baggage, homework, knowledge, money, permission, research, traffic, travel.
These nouns are not used with a/an or numbers and are not used in the plural.
We’re going to get new furniture for the living room.
Not: We’re going to get a new furniture for the living room. or We’re going to get new furnitures for the living room.
We had terrible weather last week.
Not: We had a terrible weather last week.
We need rice next time we go shopping.
Some nouns always have plural form but they are uncountable because we cannot use numbers with them.
I bought two pairs of trousers.
Not: I bought two trousers.
Other nouns of this type are: shorts, pants, pyjamas, glasses (for the eyes), binoculars, scissors.
Warning:
Some nouns which are uncountable in English are countable in other languages (e.g. accommodation, advice, furniture, information):
They can give you some information about accommodation at the tourist office.
Not: They can give you some informations about accommodations at the tourist office.
Can you give me some advice about buying a second-hand car?
Not: Can you give me some advices about buying a second-hand car?
A good learner’s dictionary will tell you whether a noun is countable or uncountable.
To refer to one or more quantities of an uncountable noun, expressions such as a bit of, a piece of, an item of or words for containers and measures must be used:
He bought a very expensive piece of furniture for his new apartment.
Maggie always has some exciting bits of news when she comes to see us.
I think we’ll need five bags of cement for the patio.
There’s a litre of milk in the fridge for you. And I bought you a bar of chocolate.
Uncountable nouns can be used with certain determiners (e.g. my, her, some, any, no, the, this, that) and expressions of quantity (e.g. a lot of, (a) little):
They gave me some information about courses and scholarships and things.
Have you heard the news? Fran’s getting engaged.
She’s been studying hard and has made a lot of progress.
There’s no work to do here, so you can go home if you like.
This milk’s a bit old, I’m afraid.
We can sometimes use countable noun phrases to talk about an individual example of the thing an uncountable noun refers to.
uncountable
|
countable
|
accommodation
|
a house, a flat, a place to live, a place to stay
|
baggage/luggage
|
a suitcase, a bag, a rucksack
|
bread
|
a loaf (of bread), a (bread) roll
|
lightning
|
a flash of lightning
|
luck
|
a stroke of luck
|
money
|
a note, a coin, a sum of money, a euro, a dollar
|
poetry
|
a poem
|
rain
|
a shower, a downpour, a storm
|
travel
|
a journey, a trip
|
work
|
a job, a task
|
Finding a place to live is difficult if you’re a student and you’ve got no money. (or Finding accommodation …)
Not: Finding an accommodation …
She brought two big suitcases and a rucksack with her.
Not: She brought two big luggages …
I read a poem once about someone riding a horse at night.
Not: I read a poetry …
We went on a trip to the Amazon when we were in Brazil.
Not: We went on a travel …