wood is an uncountable noun, referring to the material derived from trees. For example, Chitty sat in his rocking chair, whittling wood. The word “woods” refers to a forest or a grove of trees. For instance, building a motorway through these woods would be considered sacrilege.
Uncountable nouns cannot be counted as individual entities. They represent concepts, states, qualities, emotions, or substances. Generally, they do not have a plural form and only have a singular form. They are not used with indefinite articles like “a” or “an,” but when referring to a specific instance, they can be used with a noun phrase. However, when an uncountable noun is used to indicate a type, occurrence, or emotional state and is followed by a noun or a product representing that type, it can also be used with the indefinite article “a” or “an”.
On the other hand, countable nouns can be counted and can be divided into individual people or things. They have plural forms, and when they are used as the subject of a sentence, the verb must also be in the plural form.
