Goroawase

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Goroawase (語呂合わせ) is an especially common form of Japanese wordplay whereby homophonous words are associated with a given series of letters, numbers or symbols, in order to associate a new meaning with that series. The new words can be used to express a superstition about certain letters or numbers. More commonly, however, goroawase is used as a mnemonic technique, especially in the memorization of numbers such as dates in history, scientific constants, and phone numbers.

Numeric substitution

Every digit has a set of possible phonetic values, due to the variety of valid Japanese kun'yomi and on'yomi, and English-origin pronunciations for numbers in Japanese. Often readings are created by taking the standard reading and retaining only the first syllable (for example roku becomes ro). Goroawase substitutions are well known as mnemonics, notably in the selection of memorable telephone numbers for commercial services, and in the memorization of numbers such as years in the study of history.

Mnemonics are formed by selecting a fitting reading for a given number from the list below.

Number Japanese kunyomi readings Japanese onyomi readings Transliterations from English readings
0 maru, ma rei, re o, zero, ze
1 hitotsu, hito, hi ichi, i wan
2 futatsu, fu, futa ni tsū, tū
3 mitsu, mi san, sa surī
4 yon, yo, yotsu shi
5 itsutsu, itsu go, ko faibu, faivu
6 mutsu, mu roku, ro shikkusu
7 nana, nanatsu, na shichi sebun, sevun
8 yatsu, ya hachi, ha, ba eito
9 kokonotsu, ko kyu, ku nain
10 ju, ji ten


Number Japanese kunyomi readings Japanese onyomi readings Transliterations from English readings
0 まる、ま れい、れ オウ、ゼロ、ゼ
1 ひとつ、ひと、ひ いち、い ワン
2 ふたつ、ふた、ふ
3 みつ、み さん、さ スリー
4 よん、よ、よつ フォー
5 いつつ、いつ ご、こ ファイブ、ファイヴ
6 むつ、む ろく、ろ シックス
7 ななつ、なな、な しち セブン、セヴン
8 やつ、や はち、は、ば エート
9 ここのつ、こ きゅう、く ナイン
10 とお じゅう、じ テン

Examples

As mnemonics

1492 (the year of discovery of America) can be memorized as: iyo! kuni ga mieta! (derived as follows: i (1) yo (4)! ku (9) ni (2) (ga mieta)!), meaning: "Wow! I can see land!" or i (1) yo (4)! ku (9) ni (2), It's good country.

23564 (23 hours, 56 minutes, 4 seconds, the length of a sidereal day) can be read "ni-san-go-ro-shi", which sounds very similar to "nii-san koroshi" (兄さん殺し), or in English Fratricide|killing one's brother.

3.14159265 (Pi) can be read "san-i-shi-i-ko-ku-ni-mu-ko"(産医師異国に向こう), meaning "An obstetrician goes to foreign country.".

Other examples

4649 "yoroshiku" (derived as follows: "yo" (4) "ro" (6) "shi" (4) "ku" (9)) means: "Nice to meet you."

18782 can be read "i-ya-na-ya-tsu" (いやなやつ) – meaning unpleasant guy

37564 can be read "mi-na-go-ro-shi" (みなごろし), meaning massacre, or kill them all.

893 can be read "ya-ku-za" (やくざ) or Yakuza. It is traditionally a bad omen for a student to receive this candidate number for an examination.

573 stands for "ko-na-mi" or Konami. This number appears in many Konami telephone numbers and as a high score in Konami games.

765 stands for "na-mu-ko" or Namco. Derivatives of this number can be found in dozens of Namco produced video games. It is also the central studio of The Idolmaster and its sequels.

.59 "ten go ku" is the title of a song from the Konami game beatmania IIDX. "Tengoku" (天国) means heaven.

3923 "san kyu ni san", or "Thank you Nissan!" (Nii-san means elder brother, so it is more like "Thank you, brother."). Found in the Online Comics of NBC TV Show Heroes, for which Nissan is a sponsor.

634 "mu sa shi", intentionally set the height of Tokyo Skytree sounds like Musashi Province or Miyamoto Musashi, easy to remember among Japanese.

801 "ya o i" or yaoi, homosexual themed manga typically aimed at women

39 can be read as "san-kyu" (thank you); or "mi-ku", as in Hatsune Miku

15 is "jū go"; but 1 5 is "Ichi Go" or Ichigo Kurosaki, the main character in Bleach. Ichigo is also "Strawberry" in Japanese

315 is "san-ichi-kyuu"; but 3 1 5 is Sa-I-Ga, as in kamen Rider 555: Paradise Lost#Kamen Rider Psyga|Kamen Rider Psyga, hence the code to activate the henshin.

913 is "kyu ichi san"; but can also be read as "ka-i-sa", as in list of Kamen Rider 555 characters#Masato Kusaka|Kamen Rider Kaixa, hence the code to activate the henshin. An anagram of this is 193. it was intended to be read as "ichi kyu san", but can also be read as "I-Ku-Sa" as in Kamen Rider Ixa|Kamen Rider IXA or Iku-san. In the former's case, this is the code to activate Rising Mode. In the latter's case, it also means list of Touhou Project characters#Iku Nagae|Iku Nagae

23 can be read as "ni san", motor manufacturer Nissan frequently enter cars numbered '23' into motorsport events.

In popular culture

Goroawase is used extensively in The Adventures of Tweeny Witches, where the main character introduces it as a method to more easily remember and cast spells. This game is used in episode 400 of the series Case Closed.