Nouns can be countable and uncountable in nature. Here, on this page, you find the difference between the countable nouns and uncountable nouns.
What is a countable noun?
Countable nouns are the nouns which can be counted.
Example: student, cat, pet, house, dog, man, holiday, bottle.
They usually have a singular and plural form.
Singular countable nouns are usually known by the articles ‘a’ and ‘an’
What is a uncountable noun?
Uncountable nouns are, on the other hand, they are the nouns which cannot be counted. They are also known as mass nouns. They have only singular forms and no plural forms. These nouns are considered as a whole thing rather than as part. Most of the abstract nouns are considered as uncountable.
Example: money, air, water, milk, flour, snow, luggage, happiness, truth.
Examples of the uncountable noun (singular form)
In some cases, some uncountable nouns can be considered as a countable noun. It depends on the context of the noun.
She will have two teas. (two teas = 2 cups of tea)
There are two hairs in the bathtub. Both are short.
Words which are used with countable and uncountable nouns.