In classical Chinese philology, words are divided into two classes: the shizi (實字 lit. "solid word") and the xuzi (虛字 lit. "empty word"). The former include what modern linguists call verbs, nouns, and adjectives, while the latter includes what modern linguists call particles. Opinions differ as to which category pronouns and adverbs belong to. Chinese particles are also known as yuzhu (語助), zhuzi (助字), zhuci (助詞/助辭), yunci (語辭) or simply ci (辭). Philology, etymologically, is the love of words. ... It has been suggested that Verbal agreement be merged into this article or section. ... In linguistics, a noun or noun substantive is a lexical category which is defined in terms of how its members combine with other grammatical kinds of expressions. ... In grammar, an adjective is a word whose main syntactic role is to modify a noun or pronoun (called the adjectives subject), giving more information about what the noun or pronoun refers to. ... In linguistics, the term particle is often employed as a useful catch-all lacking a strict definition. ... In linguistics and grammar, a pronoun is a pro-form that substitutes for a noun or noun phrase with or without a determiner, such as you and they in English. ... An adverb is a part of speech. ...

The character for a Chinese particle is often used phonetically. The meaning of a Chinese particle depends on its position in the sentence, and the context. For example, the common particle qi (其), which etymologically means a "winnowing basket" (later written as 箕), can have the following meanings: In Written Chinese, jiajie (假借 borrow; make use of) is the practice of using the character for one word to write another homophonous or near-homophonous word. ...

The first book devoted to the studies of the Chinese particles is Speech Helpers (語助) by Lu Yiwei (盧以緯) of the Yuan Dynasty. More important works concerning the particles followed, including Some Notes on the Helping Words (助字辨略) by Liu Qi (劉淇) and Explanations of the Articles Found in the Classics (經傳釋詞) by Wang Yinzhi (王引之), both published during the Qing Dynasty. These works focus on the particles found in the Confucius classics, paying little attentions to the particles used in the vernacular literature. The Compilation and Explanations of the Colloquial Terms Found in Classical Poetry and Dramas (詩詞曲語辭彙釋) by Zhang Xiang (張相), published posthumously in 1953, was the first work covering the particles found in the vernacular literature. In English, there is A Dictionary of the Chinese Particles by W. A. C. H. Dobson (Toronto: University of Toronto Press, 1974). Pinyin, more formally called Hanyu Pinyin (Simplified Chinese: ; Traditional Chinese: ; Pinyin: ), is the most common variant of Standard Mandarin romanization system in use. ... The four successor Khanates of the Mongol Empire Capital Dadu Language(s) Mongolian Chinese Government Monarchy Emperor  - 1260-1294 Kublai Khan  - 1333-1370 Ukhaatu Khan History  - establishing the Yuan Dynasty 1271  - Fall of Dadu September 14, 1368 Population  - 1330 est. ... Flag (1890-1912) Anthem Gong Jinou (1911) Territory of Qing China in 1892 Capital Shengjing (1636-1644) Beijing (1644-1912) Language(s) Chinese Manchu Mongolian Government Monarchy Emperor  - 1636-1643 Huang Taiji  - 1908-1912 Xuantong Emperor Prime Minister  - 1911 Yikuang  - 1911-1912 Yuan Shikai History  - Establishment of the Late... Confucius (Chinese: ; Pinyin: ; Wade-Giles: Kung-fu-tzu), lit. ...