Nouns can generally be divided into individual nouns, collective noun, material nouns, abstract nouns and proper nouns.

Among them, individual nouns refer to individuals in a certain kind of people or things, such as girls. Collective noun represents a collection of individuals, such as the audience. Material nouns denote objects that cannot be divided into individuals, such as water.

Abstract nouns represent abstract concepts such as action, state, quality and feeling, such as work and happiness. Proper nouns are generally people's names, such as Peter and China.

Grammatical attributes of a word. It is determined according to the grammatical function of words in combination. If "beautiful" has the grammatical attribute of adjectives, it is adjectives. Part of speech is the basis of classifying a word.

Part of speech is a linguistic term and a grammatical classification of words in a language. It is the result of dividing words according to grammatical features (including syntactic functions and morphological changes) and taking into account lexical meanings. Words in modern Chinese can be divided into 12 parts of speech.