Japan Data

Akasi or Akashi? Hepburn Most Established of Japan’s Different “Rōmaji” Systems

Education Culture

Signs on highways and at railway stations in Japan show place names in both Japanese and Roman letters, although the rōmaji system employed can vary. The Hepburn system dominates, but the Kunrei and Nihon systems are also seen around the country.

Japanese words spelled in rōmaji, or the Roman alphabet, are ubiquitous in Japan, appearing on signage on roads and at train stations as well as on product labels and in advertisements. Elementary school children first learn to spell Japanese words using the Kunrei system, but the Hepburn system is the most widely used. A less well-known Nihon system also exists.

A survey on Japanese language use by Japan’s Agency for Cultural Affairs sheds light on the prominence of the different systems. Concerning the Romanized spelling of the Hyōgo Prefecture city 明石, 75.4% of respondents chose the Hepburn spelling “Akashi” and 23.3% the Kunrei spelling “Akasi.” Hepburn was also the dominant form when rendering the prefecture 愛知, with 88.0% spelling it “Aichi” compared to 10.8% who chose the Kunrei form “Aiti.”

The various rōmaji styles have distinct backgrounds. The Hepburn system was devised by a group that included US missionary James Curtis Hepburn, to whom history has assigned sole naming credit after he adopted the form for the third edition of a popular Japanese-English dictionary, published in 1886. The Kunrei system derives from the earlier Nihon system and is the first form that most children learn. As Hepburn is easier for people with English-language backgrounds to pronounce, it has become the dominant form and is used on important documents like passports and road signs.

Rōmaji Spelling Dominance

Rōmaji Spelling of 明石

While the Hepburn system is predominant, the Kunrei system has become standard in a number of cases. When polled about the romanization of the Aomori Prefecture city 五所川原, 54.8% of respondents selected the Kunrei form “Gosyogawara,” compared to 43.9% for the Hepburn style “Goshogawara.” When spelling the Hyōgo city 丹波, 81.8% of respondents used the Kunrei version “Tanba,” against 16.7% who opted for “Tamba” in the Hepburn style.

A train station sign displaying “Tamba” in Hepburn spelling. (© Pixta)
A train station sign displaying “Tamba” in Hepburn spelling. (© Pixta)

The West Nippon Expressway Company uses “Tanba” according to Kunrei spelling, seen here on a highway toll booth sign. (© Pixta)
The West Nippon Expressway Company uses “Tanba” according to Kunrei spelling, seen here on a highway toll booth sign. (© Pixta)

Differences in Rōmaji Systems

Hepburn Kunrei Nihon
shi si
chi ti
tsu tu
fu hu
o wo
n/m n
ji zi
ji zi di
zu du
しゃ / しゅ / しょ sha / shu / sho sya / syu / syo
じゃ / じゅ / じょ ja / ju / jo zya / zyu / zyo
ちゃ / ちゅ / ちょ cha / chu / cho tya / tyu / tyo
ぢゃ / ぢゅ / ぢょ ja / ju / jo zya / zyu / zyo dya / dyu / dyo

A sign for Shimbashi Station illustrates how in the Hepburn system, the hiragana character ん is spelled as an “m” when coming before a “b,” “m,” or “p.” (© Pixta)
A sign for Shimbashi Station illustrates how in the Hepburn system, the hiragana character ん is spelled as an “m” when coming before a “b,” “m,” or “p.” (© Pixta)

The survey also looked at the frequency people used rōmaji when typing Japanese. Respondents in their twenties, thirties, and forties, who rely heavily on digital devices like computers and smartphones in their work and personal lives, used it most often. Overall, 54.7% of people said they used it either regularly or occasionally, although many said that the existence of three overlapping systems resulted in some confusion regarding spelling.

A government advisory council that follows changes in Japanese language usage is planning to consult with experts and conduct a broad survey over several years to draw up recommendations for rōmaji spelling of Japanese words.

Do you use rōmaji when typing Japanese?

(Originally published in Japanese. “Akashi” and “Himeji” on a road sign spelled with the Hepburn system. © Pixta.)

Japanese language writing