Tokyo dialect

The Tokyo dialect (Tōkyō hōgen, Tōkyō-ben, Tōkyō-go (東京方言, 東京弁, 東京語)) is a variety of Japanese language spoken in modern Tokyo. As a whole, it is generally considered to be Standard Japanese, though specific aspects of slang or pronunciation can vary by area and social class.

Overview
Traditional dialects in central Tokyo are generally classified in two groups: Yamanote dialect (山の手言葉) and Shitamachi dialect (下町言葉). The Yamanote dialect is characteristic of the old upper class from the Yamanote area. Since Meiji period, Standard Japanese has been based on the Yamanote dialect. The Shitamachi dialect is a working-class dialect, and it preserves features of Edo Chōnin (Edokko) speech, so also called Edo dialect (江戸言葉, 江戸弁). Tokyo-style rakugo is typically played in the Shitamachi dialect.

Tokyo dialect dates back to Tokugawa Ieyasu's establishment of Edo. Large groups of people, speaking a range of dialects migrated across the country. The Kyoto dialect was the prestige language of the time and strongly influenced the Edo dialect in the early Edo period; the dialect grew inside the largest city in Japan and became the new prestige language in the late Edo period. Because of its unique history, especially in relation to the Kyoto dialect, Tokyo is a language island in the Kantō region. For example, traditional Kanto dialects have been characterized by the use of volitional and presumptive suffix -be, which is rarely used in Tokyo.

Phonology
The Shitamachi dialect is primarily known for its lack of distinction between some phonemes that are distinct in Standard Japanese. Most famously, it neutralizes and  so shiohigari ("shellfish gathering") becomes shioshigari, and shichi ("seven") becomes hichi. Also, it famously fronts  to   so Shinjuku becomes Shinjiku, and shujutsu ("operation") becomes shijitsu.

Another notable feature is the monophthongization of to  in the Shitamachi dialect. For example, hidoi ("terrible") becomes shidee, and taihen da ("It's serious") becomes teehen da. That feature is used in Standard Japanese as informal masculine speech like wakan'nee (wakaranai "I don't know") and sugee (sugoi "great").

In addition, is pronounced as a trill  to convey a vulgar nuance in Shitamachi speech. In informal speech, intervocalic is often changed to  or sokuon so okaerinasai becomes okaen'nasai ("welcome back home") and sō suru to becomes sō sutto ("then, and so").

Pitch accent
A few words are pronounced different pitch accent between Yamanote and Shitamachi. The following words are typical examples:
 * Bandō (another name of Kantō region): accent on ba in Yamanote, Accentless in Shitamachi.
 * saka ("slope"): accent on ka in Yamanote, on sa in Shitamachi.
 * tsugi ("next"): accent on gi in Yamanote, on tsu in Shitamachi.
 * sushi: accent on shi in Yamanote, on su in Shitamachi.
 * suna ("sand"): accentless in Yamanote, accent on na in Shitamachi.
 * asahi ("morning sun"): accent on a in Yamanote, on sa in Shitamachi.
 * aniki ("big brother"): accent on a in Yamanote, on ni in Shitamachi.
 * itsumo ("always"): accent on i in Yamanote, on tsu in Shitamachi.
 * hanashi ("talk"): accentless in Yamanote, accent on na in Shitamachi.
 * tamago ("egg"): accent on ma in Yamanote, accentless in Shitamachi.
 * accentless word -sama (a honorific): accent on sa in Yamanote, accentless in Shitamachi.

Grammar
Most of the grammatical features of the Tokyo dialect are identical to the colloquial form of Standard Japanese like the examples mentioned here. Noticeable features of the Tokyo dialect include the frequent use of interjectory particle sa, which is roughly analogous to "like" as used in American English slang; tsū (common style) and tee (Shitamachi style), instead of to iu ("to say" or "is called"); the frequent use of emphasis sentence-final particle dai or dee in Shitamachi, which is famous for a typical Shitamachi verbal shot teyandee! ([nani o] itte iyagaru n dai!, "What are you talking about!?").

Historically, Kanto dialects lacked keigo (honorific speech). However, because of its connection with Kyoto and the stratification of urban society, the Tokyo dialect now has a refined keigo system. The Yamanote dialect is primarily known for an extreme use of keigo and the keigo copula zamasu or zāmasu, sometimes zansu, derived from gozaimasu. The courtesy imperative mood asobase or asubase is also a well-known keigo word from the traditional Tokyo dialect. For example, "Won't you please wait for me?" translates to for o-machi kudasai in standard Japanese, and o-machi asobase in the traditional Tokyo dialect.

Vocabulary
Though it also includes a few distinctive words, it is largely indistinguishable from the standard speech of Tokyo except for phonology. Famous Shitamachi words are the swear word berabōme! or beranmee! (masculine Shitamachi speech is commonly known as Beranmee kuchō or "Beranmee tone"), atabō for atarimae "of course", mattsugu for massugu "straight" and choito for chotto "for a moment, a bit." Atashi is a first-person feminine pronoun in Standard Japanese, but in Shitamachi dialect, it is often used by both men and women. An emphasis prefix o is used frequently with verbs such as oppajimeru for hajimeru "to start" and ottamagerufor tamageru "to be startled."

New Tokyo dialect
Traditional Tokyo dialects can still be seen used in fiction, but most families living in Tokyo speak Standard Japanese today. The distinction between Shitamachi and Yamanote is now almost extinct.

Historically, many people moved to Tokyo from other regions and sometimes brought their dialects into Tokyo with them. For example, jan (じゃん), which is a contraction of ja nai ka ("isn't that right?"), comes from Tōkai–Tōsan dialect via Kanagawa and Tama, and chigakatta, a nonstandard form of chigatta ("it was different"), comes from the Fukushima and Tochigi dialects.