Explain the concept of countable and uncountable nouns.

Explain the concept of countable and uncountable nouns.

Countable nouns are nouns that can be counted and have a plural form. They refer to things that can be separated into individual units or counted as separate items. Examples of countable nouns include "book," "chair," and "apple."

Uncountable nouns, on the other hand, are nouns that cannot be counted and do not have a plural form. They refer to things that are seen as a whole or cannot be separated into individual units. Examples of uncountable nouns include "water," "information," and "furniture."