Writing Foreign Sounds in Katakana

Japanese has a set of katakana combinations invented specifically to write sounds the language does not otherwise have, and your name probably needs one.

Katakana combinations used for foreign sounds
What you need to know

Writing Foreign Sounds in Katakana

Katakana has been extended over time to represent sounds that Japanese does not natively possess, using small vowels and combinations that do not appear in hiragana. These conventions matter for anyone whose name contains a v, a th or a ti, and for reading the loanwords and brand names that use them. This guide covers the extended combinations, the substitutions used where no combination exists, and how to settle on a consistent rendering of your own name.

Extended combinations cover sounds Japanese does not natively have

Where no combination exists, a conventional substitution is used

Each combination is still one beat, however many characters

Choose one spelling of your name and never vary it

The extended combinations

These are formed the same way as the native combinations, by following a base character with a small vowel, but they use bases and pairings that hiragana does not.

They exist to write sounds Japanese lacks, and they appear constantly in loanwords, brand names and foreign personal names.

JapaneseRomajiMeaning
ティtiAs in party
ディdiAs in disc
トゥtuAs in two
ファfaAs in fan
ウィwiAs in week
シェsheAs in shell

Each of these is one beat despite being written with two characters, which follows the same rule as the native combinations.

Sounds with no equivalent

Where no combination has been devised, a conventional substitution is used, and the substitutions are consistent enough to be predictable.

Knowing them lets you guess how an unfamiliar foreign word will be written, which is genuinely useful when reading brand names and technical terms.

Foreign soundUsually becomesNote
th, unvoicedsThree, think
th, voicedzThis, that
vbOr a dedicated character
lrNo l exists in Japanese
sishiThe si sound does not occur
Final consonantConsonant plus u or oAdds a beat

The last row is why loanwords are longer than their originals. Every consonant that cannot end a syllable gets a vowel, and every added vowel is a beat.

The v question

Japanese has a dedicated way of writing v, using a character with a voicing mark, but in practice the b row is used far more often, particularly in words that entered the language earlier.

Both are correct and you will meet both. For your own name, pick one and stay with it.

JapaneseRomajiMeaning
バイオリンbaiorinViolin, with b
ヴァイオリンvaiorinViolin, with the v character
ビデオbideoVideo, with b
ベトナムBetonamuVietnam, with b
ヴィクトリアVikutoriaVictoria, with the v character
バンbanVan, with b

The b spellings dominate in established words. The v character appears more in newer borrowings and in names where the writer wants to signal the original sound.

Rendering your own name

This matters practically, because your name in katakana will go on contracts, bank accounts, residence records and delivery labels, and those records are matched against each other.

Consistency is therefore more important than accuracy. Choose the closest reasonable approximation, write it down, and use exactly that spelling everywhere.

  • Approximate each sound with the closest available kana or combination.
  • Add a vowel after any consonant that cannot end a syllable.
  • Use the middle dot between a given name and a surname.
  • Write it down and photograph it, so you can show it at counters.
  • Never vary it, even if a later spelling seems more accurate.

Saying it so it can be written

A foreign name pronounced in its original way is frequently not parseable to a Japanese listener, because the sounds and rhythm do not map onto Japanese moras. The version that gets recorded correctly is the katakana one, said in Japanese rhythm.

This feels like mispronouncing your own name and it is not. You are giving the listener a version they can hear and write.

JapaneseRomajiMeaning
カタカナで言いますね。Katakana de iimasu ne.I will say it in katakana.
ゆっくり言います。Yukkuri iimasu.I will say it slowly.
書いたものをお見せします。Kaita mono o omise shimasu.Let me show you it written down.
パスポートと同じつづりです。Pasupōto to onaji tsuzuri desu.It is the same spelling as on my passport.
中黒で区切ってください。Nakaguro de kugitte kudasai.Please separate it with the middle dot.
長いので、下の名前だけで大丈夫です。Nagai node, shita no namae dake de daijōbu desu.It is long, so just my first name is fine.

Reading unfamiliar loanwords

Once the substitutions are familiar, unfamiliar katakana becomes far more readable, because you can work backwards from the Japanese sounds to the original word.

The technique is to read the beats, drop the inserted vowels, and reverse the substitutions. Most loanwords resolve in a second or two with practice.

  • Read the whole word by beats first, without guessing.
  • Drop the vowels that were inserted after consonants.
  • Reverse the substitutions: r may be l, b may be v, s may be th.
  • Check whether the result is a word you know.
  • If not, the word may be from another language or made in Japan.
Key points

A practical way to improve

Settle your own name in katakana once, write it down, and use that spelling on every form. Then practise saying it in Japanese rhythm, because a name said with its original pronunciation is often not recognisable to a listener who has to write it down.

  1. 1

    Choose one clear goal

    Focus each session on a situation or skill you can actually use.

  2. 2

    Practice actively

    Say complete answers aloud instead of only reading or recognizing Japanese.

  3. 3

    Review and repeat

    Keep useful corrections and revisit the same skill until it feels natural.

FAQ

Frequently asked questions

How is v written in Japanese?

Either with a dedicated character carrying a voicing mark, or more commonly with the b row. Both appear, and the b substitution is by far the more usual in established loanwords.

How is th written?

There is no equivalent, so it is substituted, usually with s or z depending on whether it is voiced. Three becomes a word beginning with the s sound.

How do I write my name in katakana?

Approximate it with the closest available sounds, then keep that spelling permanently. Consistency matters more than accuracy, because your name will be recorded and matched against later.

Do these combinations count as extra beats?

No. A combination written with two characters is still one beat, exactly like the native small-kana combinations.

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