similarity can be both a countable and uncountable noun. Countable nouns refer to individuals or objects that can be quantified and can have a plural form. When the plural form of a countable noun is used as the subject of a sentence, the predicate should also be in plural form. Nouns can be classified as countable nouns and uncountable nouns based on their countability. Countable nouns can be further divided into nouns that can be divided into individuals and can be directly counted, such as desks, kites, girls, rooms, and schools. Uncountable nouns refer to concepts, states, qualities, emotions, or materials that cannot be quantified or divided into individuals. Generally, they only have a singular form and cannot be used with indefinite articles like “a/an”. If the individual meaning of an uncountable noun needs to be expressed, it is generally used in conjunction with a noun phrase, similar to the structure of “number word (measure word) noun” in Chinese, where the measure word meaning depends on the specific noun it is paired with.
