Hanyu Pinyin in the context of "Wade–Giles"

Gwoyeu Romatzyh (/ˌɡwoʊjuː roʊˈmɑːtsə/ GWOH-yoo roh-MAHT-sə; abbr. GR) is a system for writing Standard Chinese using the Latin alphabet. It was primarily conceived by Yuen Ren Chao (1892–1982), who led a group of linguists on the National Languages Committee in refining the system between 1925 and 1926. In September 1928, it was adopted by the Republic of China as the national romanization system for Standard Chinese. GR indicates the four tones of Standard Chinese by varying the spelling of syllables, a method originally proposed by team member Lin Yutang (1895–1976). Distinct sets of spellings are assigned to syllables in GR according to particular rules. This differs from approaches used by other systems to denote tones, like the numerals used by the earlier Wade–Giles system, or the diacritics used by the later Hanyu Pinyin system.

Despite support from linguists both in China and overseas—including some early proponents who hoped it would eventually replace Chinese characters altogether—GR never achieved widespread use among the Chinese public, who generally lacked interest in the system or viewed it with hostility due to its complex spelling rules. In places where GR had gained traction, it was eventually replaced—largely by Hanyu Pinyin, which became the international standard during the 1980s, and which follows principles originally introduced by GR. Widespread adoption of GR was also hindered by its narrow calibration to the Beijing dialect, during a period when China lacked the strong central government needed to impose use of a national spoken language.

The Yale romanization of Cantonese was developed by Yale scholar Gerard P. Kok for his and Parker Po-fei Huang's textbook Speak Cantonese initially circulated in looseleaf form in 1952 but later published in 1958. Unlike the Yale romanization of Mandarin, it is still widely used in books and dictionaries, especially for foreign learners of Cantonese. It shares some similarities with Hanyu Pinyin in that unvoiced, unaspirated consonants are represented by letters traditionally used in English and most other European languages to represent voiced sounds. For example, [p] is represented as b in Yale, whereas its aspirated counterpart, [pʰ] is represented as p. Students attending the Chinese University of Hong Kong's New-Asia Yale-in-China Chinese Language Center are taught using Yale romanization.

Some enthusiasts employ Yale romanisation to explore writing Cantonese as an alphabetic language [zh].

Tone numbers are numerical digits used like letters to mark the tones of a language. The number is usually placed after a romanized syllable. Tone numbers are defined for a particular language, so they have little meaning between languages.

Other means of indicating tone in romanization include diacritics, tone letters, and orthographic changes to the consonants or vowels. For instance, in Mandarin, the syllable 馬 (which has a falling-rising tone) is represented in Wade-Giles romanization as ma, with a tone number; in Hanyu Pinyin as mǎ, with a diacritic; and in Gwoyeu Romatzyh as maa, with a change in the vowel letter.

Tianyulong (Chinese: 天宇龍; Pinyin: tiānyǔlóng; named for the Shandong Tianyu Museum of Nature where the holotype fossil is housed) is an extinct genus of heterodontosaurid ornithischian dinosaur. The only species is T. confuciusi, whose remains were discovered in Jianchang County, Western Liaoning Province, China.